ms3basev30 hardware 1.4

8/18/2019 MS3baseV30 Hardware 1.4

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MS3(base)/V3.0 Hardware GuideMegasquirt-3 Product Range

MS3 1.4.x

Dated: 2015-10-12

Hardware manua co!ering s"eci#ic wiring and con#iguration o# $our Megaquirt MS3/V30 %&'.

This version of the documentation applies to:• MS3 on a V3.0 mainboard without MS3 as shown above runnin! firmware MS3 1.4.xSee the Settin! "p manual for more detail on version numbers.

#oes not appl$ to other Me!as%uirt products or other firmware versions.

&c' (014)* +ames Murra$


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MS3base,V3.0 -ardware uide

ab e o# & a"ters1: /ntroduction.............................................................................................................................(: Me!as%uirt S$stem -ardware..............................................................................................103: irin!...................................................................................................................................1(4: 2uel S$stem..........................................................................................................................*0*: /!nition S$stem ) fundamentals............................................................................................ 0

: /!nition s$stem ) specific operatin! modes........................................................................100: Throttles..............................................................................................................................1 3: 5ptional -ardware.............................................................................................................1 4

6: 7xample wirin!...................................................................................................................1 410: 2urther information...........................................................................................................111: 8ppendix 8 Schematics....................................................................................................11(: 8ppendix 9: un;$ard !uide to findin! 7#/S....................................................................113: 8ppendix


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&ontents1: /ntroduction.............................................................................................................................

1.1 7missions and disclaimer................................................................................................1.( =e%uired tools..................................................................................................................1.3 -ow to use this manual....................................................................................................1.4 Scope of advice without MS3 ........................................................................................6

(: Me!as%uirt S$stem -ardware..............................................................................................10(.1 5verview........................................................................................................................10(.( Me!as%uirt /nstallation...................................................................................................10(.3 irin! -arness...............................................................................................................11(.4


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3.*.( /!nition outputs.......................................................................................................413.*.3 2uel pump output....................................................................................................413.*.4 /dle valve.................................................................................................................413.*.* Tacho output...........................................................................................................43.*. 5ther rela$ outputs.................................................................................................4

3.*. 9oost control output................................................................................................43. 9ench test wirin!............................................................................................................43. .1 Minimal connection.................................................................................................43. .( +imStim connection.................................................................................................4

4: 2uel S$stem..........................................................................................................................*04.1 /ntroduction....................................................................................................................*0

4.1.1 7xistin! 72/ Vehicle................................................................................................*14.1.( =etro)fit 72/ Vehicle................................................................................................*1

4.( Sin!le 2uel pump...........................................................................................................*14.3 ?ow pressure , hi!h pressure ) twin pump.....................................................................*14.4 irin! the 2uel >ump.....................................................................................................*(

4.* 2uel ?ine.........................................................................................................................*(4. 2uel filter.........................................................................................................................*34. 2uel >ressure =e!ulator................................................................................................*34. /n ector installation.........................................................................................................*44.6 2uel =ails.......................................................................................................................*44.10 2uel /n ectors................................................................................................................*4

4.10.1 /n ector SiBe..........................................................................................................*44.10.( /n ector /mpedance and batch)fire wirin!.............................................................*4.10.3 Sta!ed in ection....................................................................................................*64.10.4 Se%uential in ection...............................................................................................*6

*: /!nition S$stem ) fundamentals............................................................................................ 0*.1 Safet$ @otes................................................................................................................... 0*.(


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*.3.4 -i!h current coils....................................................................................................6**.3.* a!e *,(1(


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1(.( 7urope ) 7#/S4..........................................................................................................1 61(.3 7urope ) 7#/S ..........................................................................................................1611(.4 7urope ) 7#/S ..........................................................................................................1611(.* 7urope ) 3 )1 tri!!er disc..........................................................................................1611(. 7urope ) V= sensor...................................................................................................16(

1(. orld )


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*+ ,ntroductionThe MS3,V3.0 is an 78!uidelines and can lead to substantial fines and penalties. Iour countr$,state,district ma$ also have specificrules restrictin! $our tamperin! with $our vehicleJs emissions s$stem.

=ace parts are inherentl$ dan!erous and ma$ cause in ur$ or dama!e if improperl$ modified or altered beforeuse. The publishers of this manual will not be held liable for and will not pa$ $ou for an$ in uries or dama!ecaused b$ misuseC modificationC redesi!nC or alternation of an$ of our products. The publishers of this manual

will not be held in an$ wa$ responsible for an$ incidental or conse%uential dama!es includin! direct or indirect laborC towin!C lod!in!C !ara!eC repairC medicalC or le!al expense in an$ wa$ attributable to the use of an$ item in our catalo! or to the dela$ or inconvenience caused b$ the necessit$ of replacin! or repairin! an$ such item.

1.2 Required toolsTunin! laptop

Stroboscopic timin! li!ht

Multi)meter &voltsC ohms'

Screwdrivers

ire cutters

Terminal crimpersSolderin! iron and solder

-eat)shrin; tubin!

2ire extin!uisher

Although not essential, the following are highly recommended:

5scilloscope or scope)meter or soundcard scope

Test li!ht

>ower probe

1.3 How to use this manual a!e ,(1(


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This !uide includes a number of notes which are indicated as follows:

This s$mbol indicates an K/nformationL note.

This s$mbol indicates a Ka!e 6,(1(

http://www.msextra.com/http://www.msextra.com/


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+ Megasquirt S$stem Hardware

2.1 'verviewThe Me!as%uirt en!ine control unit &7


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2.3 )irin! HarnessThe Me!as%uirt can be supplied with a Ppi!tailP wirin! harness to form the basis of $our own wirin!.

2.4 *ran+ # *am (nputsThe


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3.2 5roundin! 6Earthin!7 Schemes /mplementin! a correct !roundin! scheme is critical to a successful Me!as%uirt install.


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/f re)usin! or splicin! into 57M wirin!C do not assume that their wirin! is 5A. 8lwa$s follow the above principles.

8s a chec;C with the Me!as%uirt connector unplu!!edC ensure that the sensor !rounds have no continuit$ toen!ine,bod$ !round. Iour sensor readin!s will be un; if the$ do have continuit$ ) the sensors must !round atthe Me!as%uirt on $ .

3.3 *ore )irin! ia!ram=efer to the dia!ram on the followin! pa!e.

3.3.1 *onnectors

&c' (014)* +ames Murra$ (01*)10)1( >a!e 14,(1(

Mainboardconnector

pin 1


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The ?7#s have the followin! standard functions:

?7#14 Q PS%uirtP ) flashes for each in ection pulse

?7#1* Q P armupP ) li!hts up in warmup mode.?7#1 Q P8ccelP ) li!hts up durin! acceleration enrichment

2re%uentl$ these will be re)purposed to control i!nition or !eneric outputs. &@one of them is a Ppower ?7#P.'

3.3.2 'ptional *onnectionsThe followin! wirin! dia!ram and table show a number of functions in braces &'. These indicate optionalconnections. These must be connected internall$ b$ $ou &or the 7


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+S10G >T* /n,5ut 5ptional cam input or !eneral input,output. 0.0(8

+S11G >+ /n,5ut eneral input,output. 0.0(8

#14 >M3 5ut ?7# ne!ative can be used for rela$ output. 0.(8

#1* >M* 5ut ?7# ne!ative can be used for rela$ output. 0.(8

#1 >M4 5ut ?7# ne!ative can be used for rela$ output. 0.(8>ins mar;ed R operate in pairs. hen +S0 is 1(VC +S1 is 0V. +S0)3 are t$picall$ wired to /8


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&c' (014)* +ames Murra$ (01*)10)1( >a!e 1 ,(1(


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Main " ug /I8utoTune.com colors'

Pin2 ame &o or ,n/ ut 1unction Ma am"s

1 @# 9lac; @# =4 Tan,5ran!e ) spare )

@# 9lac;, hite @# Sensor !round )

@# ) @# spare @# )

6 @# ) @# spare @# )

10 @# ) @# spare @# )

11 @# ) @# spare @# )

1( @# ) @# spare @# )13 @# ) @# spare @# )

14 @# ) @# spare @# )

1* @# 9lac; @# >5 7= =5"@# )

1 @# 9lac; @# >5 7= =5"@# )

1 @# 9lac; @# >5 7= =5"@# )

1 @# 9lac; @# >5 7= =5"@# )

16 @# 9lac; @# >5 7= =5"@# )

(0 M8T 5ran!e /n M8T sensor input )

(1


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3.3.4 Rela /oard The D=ela$ 9oardD is an optional add)on that ma$ be useful for installs that do not have an$ existin! 72/ wirin!. /tprovides a DmainD rela$ to switch clean power to the Me!as%uirtC a Dfuel pumpD rela$ to operate the pump andaccessories and a Dfast idleD rela$ for an on,off t$pe idle valve.

@ot recommended for:• se%uential installs• race installs• low impedance in ectors• installs where the screw terminals connections ma$ !et wet.

Main " ug to Re a$ board cross re#erence

4536

2

4536 ame Re a$

5oard 2

Re a$ 5oard

ame

,n/ ut 1unction Ma

am"s1)( @# ) 7n!ine @# @# >5 7= =5"@# )

3 S>=1 @,8 @ot availableR &=( @,8 @ot availableR &=3 @,8 @ot availableR ) spare )

S>=4 @,8 @ot availableR ) spare )

)1 @# ) 7n!ine @# @# >5 7= =5"@# )

16 @# 14 T>S =et @# Sensor @# )

&c' (014)* +ames Murra$ (01*)10)1( >a!e 16,(1(


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16 @# 1 M8T =et @# Sensor @#

16 @# 16


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4. hen usin! a > M idle valve from the D2/#?7D outputC the idle rela$ must be left out and b$passed.

3.4 (nputs

3.4.1 *ran+ and *am ach inputs

These sensors provide the Me!as%uirt with en!ine position information and are used to schedule fuel and spar;.See


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This sensor measures air pressure on absolute scale where Bero is a complete vacuum and sea)level ambientpressure is around 101;>a. This sensor is the primar$ input for the PSpeed)#ensit$P fuel al!orithm. 8lpha)@users do not re%uire a M8> sensor and can optionall$ use the built)in sensor as a baro sensor.

The pressure barb is connected to a full)vacuum source at the inta;e manifold. hen tappin! into an$ existin!vacuum ports on a throttle bod$ be sure to select one that !ives full vacuum when the throttle is closed. &i.e. nota Pported vacuumP source that would connect to a distributor.'

0 *0 100 1*0 (00 (*0 3000

1

(

3

4

*

M8> sensor response

8bsolute pressure ;>a

V o

l t a ! e

5ptionall$ a second sensor ma$ be installed to measure barometric pressure. This wor;s in the same wa$ butt$picall$ a 1)bar sensor is used. The pressure feed port is left open to the atmosphere and will help the en!inerespond to chan!es in ambient pressure or elevation.

&c' (014)* +ames Murra$ (01*)10)1( >a!e ((,(1(

M8> sensor hoseconnects here


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)40 10 0 110 1 0 (10 ( 0 3100

(0000

40000

0000

0000

100000

1(0000

Temperature sensor resistance

Temperature &de!2'

= e s i s

t a n c e

& o h m s '

The red dots are the three standard calibration points for M sensors.

The 7


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The manual calibration process re%uires the use of a multimeter set to measure resistance and ideall$ athermometer. ithout a thermometer $our calibration will be fairl$ close but not perfect.

1. Set the meter to ohms and connect the meter to the two terminals on the M8T or


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3.4.4 *: 6*oolant emperature7 sensor

This external sensor measures the temperature of the en!ine coolant &or c$linder head for air)cooled en!ines.' /tis primaril$ used to provide additional fuel durin! en!ine warm)up.

The coolant temperature is a thermistor and wor;s in the same wa$ as the air temperature sensor.

8n$ install not usin! a


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3.4. M8 6Mass 8ir low7 Sensor

2ord ?i!htnin! pin M82 @issan /nfiniti H4* M82

The M82 Sensor measures the actual mass air)flow into the en!ine. This can be used for a more accuratefuelin! calculation) other fuelin! al!orithms estimate the mass air flow based on M8>C T>SC =>MC M8T.

MS3 supports volta!e M82s &most common' and fre%uenc$ M82s &such as ?S1'.

3.7.6.* Vo tage M81

The sensors have at least three wiresC 1(V suppl$C round &sensor !round return' and si!nal to the Me!as%uirt.

To connect a M82 to MS3,V3.0 internal hardware modifications are re%uired. Iou ma$ choose from either pinD+S* &8#< 'D or D+S4 &8#< 'D so lon! as the input port settin! in TunerStudio is set to match.

7xternall$ $ou choose which pin on the main connector is used. T$picall$ S>=3 or S>=4 would be used if the$are free.>arts re%uired. 1; 1, &or 1,4 ' resistor. 0.((u 10V ceramic capacitor.

&c' (014)* +ames Murra$ (01*)10)1( >a!e (6,(1(


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Volta!e M82

Solder into proto area. =un umper wire to +S* or +S4 &$our choice.' =un umper wire to S>=3 or S>=4 &$ourchoice.'

2ord 4 pin M82

This earlier st$le M82 has an oval connector.

8 Q Switched 1( Volts Suppl$

9 Q >ower round

< Q M82 Sensor round

# Q M82 Sensor Si!nal

2ord pin M82

This M82 also includes an inta;e air temperature sensorC so an additional M8T is not re%uired.

7 Q /8T Sensor round

8 Q Switched 1( volts suppl$

9 Q >ower round

< Q M82 Sensor round

# Q M82 Sensor Si!nal

&c' (014)* +ames Murra$ (01*)10)1( >a!e 30,(1(


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2 Q /8T Sensor Si!nal

@issan /nfiniti H4* 60mm M82

9 Q M82 Sensor Si!nal & hite'

# Q round &9lac;'

7 Q Switched 1( volts suppl$ &9lac;,white'

3.7.6. 1requenc$ M81

Man$ M &"S8' vehicles from 1664 onwards use an 8< #elco fre%uenc$ M82. &7arlier 9osch units are volta!et$pe.'

The sensors have at least three wiresC 1(V suppl$C round &sensor !round return' and si!nal to the Me!as%uirt.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 31,(1(


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M ?S1 * wire M82 &(001)(00 '

This M82 also includes an inta;e air temperature sensorC so an additional M8T is not re%uired.

>inout is provided for reference onl$ N double chec; $our application.?S3,?S believed to be different.

8 Q /8T Sensor round

9 Q /8T 5utput Si!nal

< Q >ower round

# Q Switched 1( volts suppl$

7 Q M82 Sensor Si!nal

3.7.6.3 M81 # ow cur!e

The flow response of M82 sensors is non)linear and uses a calibration tunin! curve in the Me!as%uirt to convertthe input si!nal into a !rammes,second flow rate number.

0 0.* 1 1.* ( (.* 3 3.* 4 4.* *0

*0

100

1*0

(00

(*0

300

M82 sensor response &2ord V '

Volta!e &V'

M a s s a

i r f l o w

& ! , s e c

'

&c' (014)* +ames Murra$ (01*)10)1( >a!e 33,(1(


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3.4.< le; # Switch input

The 2lex fuel &or fuel composition' sensor detects the percenta!e of ethanol within the fuel passin! throu!h it.This can be used b$ the Me!as%uirt to automaticall$ ad ust fuel and spar; to allow for the chan!e in fuel. -i!herethanol blends re%uire more pulsewidth and additional spar; advance.

The M sensor &shown' uses barbed pipesC the 2ord sensor uses screw in fittin!s.

?oo;in! into sensor connector from left.

round & M Q whiteC 2ord Q 9lac;'

F1( Volt suppl$ & M,2ord Q pin;'

5utput si!nalC & M Q purpleC 2ord Q white'

M and 2ord appear to use the same sensor but theletters on the connector ma$ be different.

To connect a 2lex 2uel sensor to MS3,V3.0 internal hardware modifications are re%uired. Iou ma$ choose fromeither pin D>70,+S D or D+S11D so lon! as the input port settin! in TunerStudio is set to match.

7xternall$ $ou choose which pin on the main connector is used. T$picall$ S>=3 or S>=4 would be used if the$are free.

>arts re%uired. Two 10; 1, &or 1,4 ' resistors.

Solder into proto area. =un umper wire to +S or +S11 &$our choice.' =un umper wire to S>=3 or S>=4 &$ourchoice.'

&c' (014)* +ames Murra$ (01*)10)1( >a!e 34,(1(


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$"ica "ressure sensor

This is a pressure sensor from -one$well with a 1, P@>T thread and a plu! the same as M T>S plu!s. Thesensor ta;es a *V suppl$ &from T>S =72'C si!nal !round at the Me!as%uirt and !ives a 0)*V output &actuall$0.* to 4.*V'.

3.4.1% Switch inputsSwitch input options: ?aunch inputC nitrous inputC shift cut input.

These features all re%uire a !round at the MS3 card to activate the feature. 8ll re%uire internal hardwaremodifications.

The simpler modification is for a !round switched input. &=ecommended.'

8 1(V switch input re%uires more components.

8s with other inputsC $ou choose which MS3 pin to use and which main connector pin to use.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 3 ,(1(


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3.4.12 *8? commsThe


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The Me!as%uirt includes a terminatin! resistor internall$C so no additional resistor is re%uired at that end.

3.4.13 @noc+ sensor Me!as%uirt supports ;noc; sensin! with an external interface to the ;noc; sensor. #o not connect a sensordirectl$ to the Me!as%uirt ) it will not wor;.

Three confi!urations are available ) on,offC analo!ue or internal

The on/o## mode can be used with a M 7S< module &1 0(( (1C 1 0*(401'

The connection to the Me!as%uirt is on +S4 or +S*.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 36,(1(


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/n the ana ogue mode C 0)*V si!nal is fed into +S4 or +S* usin! a protective circuits as in 3.4.6.1.

/n the interna mode C an add)on card is re%uired. This !ives superior ;noc;)sensin! control with softwarecontrol. /t allows per)c$linder detection and tunin! to specific en!ine bores siBe.

-oweverC the add)on re%uires that the MS3 spar; outputs are used and is not compatible with the P?7#P spar;outputs when the MS3 is used without. See the MS3 ,V3.0 manual for more details.

3.4.14 Speed sensor inputsThe speed sensors s$stem expects to receive a 0)*V pulsed si!nal internall$ at the processor.

ith some #/IC the spare inputs internall$ on the mainboard can be used with a suitable interface circuit ) suchas switch input shown in section 3.4.10

V= sensors will need a suitable interface circuit to convert the 8< si!nal into a 0)*V pulsed si!nal.

3., 'utputs

3.,.1 uel (n>ector outputs

The Me!as%uirt has two in ector outputs. These can suppl$ up to 148 maximum each. T$picall$ this allows upsix in ectors per channel. MS3,V3.0 supports both hi)B &14 ohm' and low)B &e.!. (.* ohm' in ectors directl$.

2uel in ectors are covered in more detail in section 4.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 40,(1(


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3.,.2 (!nition outputs

The Me!as%uirt can provide up to six i!nition outputs. 8ll re%uire some internal modifications.

/!nition outputs and the i!nition s$stem are covered in more detail in section *.

3.,.3 uel pump output The 2uel >ump output is low current low)side output used to drive a rela$ that switches the hi!h current fuelpump. The coils and in ectors should also ta;e power from this rela$ so that when the en!ine is shutdown orstalls these are positivel$ disconnected from power.

3.,.4 (dle valve8n idle valve is used to allow additional air into the en!ineC b$passin! the throttle plate. This wor;s similarl$ tothe part of the cho;e mechanism on a carburettor and raises idle speed durin! warmup. 8dditionall$ it can beused for Pclosed)loop idleP to maintain a stead$ idle =>M under var$in! en!ine loads &li!hts on vs. off etc.'

8s standardC the MS3,V3.0 supports on,off t$pe valves and stepper idle motors. Servo t$pe idle valves are notcurrentl$ supported.

3.9.7.* n/ ## ,d e Va !eThe standard V3.0 circuit is used to operate a rela$ to drive the idle valve.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 41,(1(

Me!as%uirt

1(V*

2> output

30

Standard 4 pinautomotive rela$


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3.9.7. -wire P M id e !a !e

()wire > M idle valves are used b$ 2ordC V C Volvo and man$ others. The MS3,V3.0 re%uires an internalmodification to be able to drive this t$pe of valve.>arts re%uired:

T/>1((

mica insulation ;it

1@4001

a' =emove H4C H(0C # if fitted.

b' 1(( so the$ are half the len!th the$ were as new.

c' 2it a piece of mica insulation under it and usin! plastic screws bolt it to the heatsin; in a spare positionC or boltonto the case.

d' Solder a wire from the center pin of H4 to the pin 1 of the T/>1((.

e' Solder a wire from the ri!ht of =36 to the pin 3 of the T/>1((

&Some installs mi!ht connect pin 3 to the bottom of =43C thatDs fine too.'

f' 7nsure # is not fitted or remove it if it is.

!' et an /@4001 and install the non banded end into the ri!ht hole of # and the banded end to S1(.

h' Solder a wire from the non)banded side of the 1@4001 diode to pin ( of the T/>1((.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 4(,(1(

Me!as%uirt

1(V*

2/#?7output

30

Standard 4 pinautomotive rela$

V3.0 standard


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The 1(V suppl$ for the idle valve must be a fused switched suppl$ ) ideall$ from the fuel pump rela$. /t mustnever be supplied power when the Me!as%uirt is off.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 43,(1(

Me!as%uirt

1(V

2/#?7 output

Solenoid t$pe

> M idle valve

V3.0 modified


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5ther manufacturers use *) or )wire steppers which are uni)polar.

These are usuall$ wired as shown in the schematic belowC with a center tap on each of two windin!s. /n useC thecenter taps of the windin!s are t$picall$ wired to the 1(V suppl$C and the two ends of each windin! arealternatel$ !rounded to reverse the direction of the field provided b$ that windin!.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 4*,(1(


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3.,., acho output 8 tacho output t$picall$ provides a 0)1(V pulsed si!nal that is suitable for drivin! an aftermar;et tachometer &revcounter.'

Some older tachometers expect the hi!h)current Pspi;eP from the i!nition coil and ma$ not wor; directl$ with a 0)1(V si!nal.

5utputs /8@((((8


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@((((8

1@4001

2romMS3

S>=3 orS>=4 etc.

@# proto

1; 1,

1(V&S1('

(@***1

=ela$coil

Tacho


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ma$ occur.

This same circuit could be used to drive a small bulb such as a shift li!ht instead of the solenoid.

3.- /ench test wirin!9efore installin! on $our en!ineC it can be useful to install the Me!as%uirt on the bench to become familiar withthe tunin! software.

3.6.1 inimal connectionThe bare minimum for testin! is a fused 1(V suppl$C !round and the serial connection to $our tunin! computer.

3.6.2 !im"tim connection2or more extensive testin!C the +imStim can be used. This has the matin! #93 connector to plu! directl$ into$our Me!as%uirt and can simulate man$ of the en!ine sensors. Ma;e sure that the +imStim does not touchan$thin! conductive as it is uninsulated.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 4 ,(1(

9oostsolenoid

2romMS3

S>=3 orS>=4 etc.

@#9ottom of =43

1; 1,

1(V

&S1('

T/>1((1@4001

1(V


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&c' (014)* +ames Murra$ (01*)10)1( >a!e 46,(1(


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7+ 1ue S$stem2uel is extremel$ flammable and fuel s$stems run at hi!h pressures. 9e sure to have a fire extin!uisherto hand in case of mishap and ta;e appropriate caution when wor;in! on fuel s$stems.

4.1 (ntroductionThe fuel s$stem install comprises electrical and plumbin! wor;.

The Me!as%uirt has two in ector outputs. These can suppl$ up to 148 maximum each. "p to six in ectors areallowed per channel.

The followin! shows a t$pical 72/ fuel s$stem.

8 hi!h pressure pump is connected to the fuel tan; and feeds fuel to the fuel rails&s' these provide fuel directl$to the top of the in ectors. The fuel rail&s' are connected to an inta;e manifold pressure referenced pressurere!ulator. The re!ulator maintains the rail pressure a set pressure above the inta;e under all conditions. 7xcessfuel is returned to the fuel tan; throu!h the return line.

Ae$ elements• 2uel pump• 2uel hose,pipe and fittin!s• /n ectors• /n ector mountin!

&c' (014)* +ames Murra$ (01*)10)1( >a!e *0,(1(


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• 2uel rails• >ressure re!ulator

4.1.1 E;istin! E ( $ehicleMost vehicles with 72/ alread$ fitted are readil$ adaptable to use Me!as%uirt for control. T$picall$ all of the fuel

s$stem components will be readil$ suitable.-oweverC if li;e man$ users $ou are increasin! the power of $our en!ineC $ou will need to consider whether $ourin ectors are lar!e enou!h and whether $our fuel pump has ade%uate flow. /n particular note that all fuel pumpsflow less fuel as the pressure increases ) so if $ou are boostin! $our en!ine $ou will be needin! more fuel underthe conditions when $our pump can suppl$ less

Some recent en!ines use 7


52/212


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and aluminum for this purpose. #o not use plain copper and it can fati!ue fail with dan!erous lea;s resultin!.The siBe is !enerall$ !iven as the outside diameter of the tubin!. "nless $ou have a ver$ unusual combination&or ver$ hi!h horsepowerC well over *00F'C $ou should be able to use 3, P tubin! for both the suppl$ and returnlines.

9u$ a !ood tubin! bender &there are numerous st$les in various price ran!es' so that $ou donDt ;in; or collapsethe tubin! while bendin! it.

Most fittin!s and adapters in the "S8 automotive aftermar;et are based on a 3 O sealin! an!le &S87 +*14 3 O)formerl$ ;nown as +/T threadC or other s$stems.@ote that if $ou are usin! a factor$ fuel railC $ou ma$ be able to find an aftermar;et adapter to mate $our 57Mfuel fittin! to an 8@ hose.

/M>5=T8@T: Aeep the fuel lines out of passen!er compartment and routed safel$ awa$ from movin! or hotparts to avoid dama!e,excessive heat. 2or flexible rubber hose use the S87 30=6 72/ hose which is rated at(*0 psi. 72/ hose clamps are also recommended rather than !ear clamps.


54/212


4.< (n>ector installationMan$ Phi!h performanceP vendors offer read$ made 72/ inta;e manifolds for en!ines that did not ori!inall$ comefitted with 72/. 5r $ou can choose to modif$ $our existin! inta;e b$ weldin!C !luein! or screwin! in in ectorbun!s. Man$ aftermar;et vendors offer suitable in ector bun!s.

4.= uel RailsMost in ector s$stems will use one or more fuel rails. These serve two functions: the$ suppl$ fuel to a multiplenumber of in ectors &4 on a 4 c$linderC for example'C and the$ ph$sicall$ locate the tops of the in ectors. Most57M rails can be made to wor; with standard en!ine confi!urationsC but if $ou are doin! a custom conversion$ou ma$ have to fabricate fuel rails. Man$ place suppl$ blan; aluminum fuel rail extrusions in whatever len!th$ou need.

4.1% uel (n>ectors

4.1%.1 (n>ector SiAe/t is important that $our in ectors are correctl$ siBed for $our en!ine siBe and power re%uirements.Too small and $ou will run out of fuel at hi!h power and rpmsC with li;el$ en!ine dama!e from !oin! lean. Toolar!e and $ou will encounter tunin! difficulties for idle and cruise conditions.

Iou can use the followin! chart to select in ectors based on the total horsepower of $our en!ine and the totalnumber of in ectors:

&c' (014)* +ames Murra$ (01*)10)1( >a!e *4,(1(


55/212


/n ectors =atin! =e%uired in cc,min &lbs,hr'

@umber of /n ectors

-orsepower 1 ( 4 *

100 (0 &*6' 30* &(6' 1* &1*' 1( &1(' 10* &10' )

1*0 6(4 & ' 4 ( &44' (31 &((' 1 6 &1 ' 1* &1*' 11 &11'

(00 ) (0 &*6' 30* &(6' (*( &(4' (10 &(0' 1* &1*'

(*0 ) & 4' 3 6 &3 ' 30* &(6' ( 3 &(*' 1 6 &1 '

300 ) 6(4 & ' 4 ( &44' 3 &3*' 30* &(6' (31 &(('

3*0 ) ) *(4 &*1' 431 &41' 3* &34' ( 3 &( '

400 ) ) (0 &*6' 464 &4 ' 410 &36' 30* &(6'

*00 ) ) & 4' (0 &*6' *1* &46' 3 6 &3 '

00 ) ) 6(4 & ' 4 & 1' (0 &*6' 4 ( &44'

00 ) ) 1(36 &11 ' 6 &64' 16 & ' (0 &*6'

1000 ) ) 1*44 &14 ' 1(40 &11 ' 1030 &6 ' & 4'

1*00 ) ) ) ) 1* * &1*0' 11 &113'

(000 ) ) ) ) ) 1**4 &14 '

9ased on 0.*0 9S2< and * dut$ c$cleTurbo,superchar!ed en!ines should add 10 to listed minimum in ector siBe

/n ectors are usuall$ rated in either lbs,hour or cc,min. The accepted conversion factor between these dependssomewhat on fuel densit$C which chan!es with formulation &i.e.C b$ season'C but the !enerall$ used conversionfor !asoline is:

* b/ r ; *0.9 cc/min

8nother wa$ to select in ectors is to ta;e them from an en!ine that ma;es nearl$ the same power as $ouren!ine will Wassumin! the same number of in ectorsX.

/f $our re!ulator is ad ustable &man$ aftermar;et ones are'C $ou can also ad ust the fuel pressure to achievedifferent flow rates.


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4.1%.2 (n>ector (mpedance and 9atch fire wirin!/n ectors can t$picall$ be cate!oriBed as either hi!h impedance &hi)BC hi!h)ohmC saturated' or low impedance&low)BC low)ohmC pea; and hold.' /t is important to ;now which t$pe $our in ectors are. 9oth t$pes can be used

with Me!as%uirt althou!h hi!h impedance tend to be easier to use.

@ew in ectors will specif$ which t$pe the$ are or list the ohms. /f $ou are unsureC measure them with $our meter

on the ohms settin!.• -i!h impedance in ectors are t$picall$ 1()1 5hms.• ?ow impedance in ectors are often (.* 5hms or less.

#o not simpl$ connect and hope.

7.*0. .* Hig im"edance in Mshould be turned off.

"p to in ectors per channel ma$ be connected.

7.*0. . =ow im"edance in M• /n ector resistors• 7xternal pea;)and)hold adapter

7.*0. .3 =ow im"edance in M mode iseffectivel$ Ppea; and holdP controlled b$ software. 8t each in ection eventC full power is applied to the in ectoruntil it opensC then the output drops bac; to a pulsed output to hold the in ector open.

#urin! cran;in! full current is applied to the in ectors.

&c' (014)* +ames Murra$ (01*)10)1( >a!e * ,(1(

Me!as%uirt/@+(

/@+1

Bank 1Switchedand fused1(Vsuppl$

Switchedand fused1(Vsuppl$

Bank 2

-i!h)B in ector wirin!


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30 > M dut$ is recommended with MS3,V3.0.

9e sure that $ou have sufficient power !rounds from $our Me!as%uirt to the en!ine.

8 small number of installs have reported interference from the > Min! of in ectors. =e)routin! the fl$bac;current can help. &See 8ppendix.'

7.*0. .7 =ow im"edance in


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The resistors should be mounted to a suitable heatsin; &e.!. a thic; piece of aluminium plate' as the$ will !et hotin operation.

#ia!ram showin! one in ector per channel and 3.3 ohm series resistors.

&c' (014)* +ames Murra$ (01*)10)1( >a!e * ,(1(

Me!as%uirt/@+(

/@+1

Inj 1Switchedand fused1(V suppl$

Switchedand fused1(V suppl$

Inj 2

?ow)B in ector wirin! withresistor

3R3 25W

Powerresistors


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7.*0. .9 =ow im"edance in and o d

8ftermar;et pea; and hold controllers are availableC these ta;e the low)side in ector output from the Me!as%uirtand provide the re%uired pea; and hold drive for the in ectors. T$picall$ this is a pea; to 48 and then a hold at18.

=efer to supplierDs documentation for exact wirin! ) the followin! dia!ram is representative onl$.

4.1%.3 Sta!ed in>ectionSta!ed in ection is a method that allows for two sets of in ectors to !ive a better d$namic ran!e of fuelin! ) moreprecise control at idleC but still flowin! enou!h fuel at full load. T$picall$C at low loadC idle or cruise onl$ thesmaller primar$ in ectors are in operation. 8t hi!her fuel demandsC the secondar$ in ectors are enabled.

hen usin! PSta!ed /n ectionP the primar$ in ectors are connected to /@+ 1 and the secondar$ in ectors areconnected to /@+ (.

See the TunerStudio reference manual for confi!uration details.

4.1%.4 Sequential in>ectionThe MS3 was desi!ned to run se%uential fuel and spar;. The se%uential output si!nals are provided on the +1and +>( headers. These are low)volta!e si!nals desi!ned to feed the MS3 card.

/n the absense of the MS3 cardC the competant #/Ier ma$ be able to wire up an interface card instead. Thedetails are be$ond the scope of this manual.

Two complementar$ pieces of hardware that ma$ be of use come from +9perf.com

4 wa$ hi!h)B driver board

4 wa$ pea;\hold low)B driver board

&c' (014)* +ames Murra$ (01*)10)1( >a!e *6,(1(

Me!as%uirt/@+(

/@+1


>ea; \ -old wirin!

4 wa$>ea;

\ -old


4 wa$>ea;

\ -old


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9+ ,gnition S$stem - #undamenta sThe i!nition s$stem comprises both the cran; and cam tach inputs and the i!nition outputs to drive coils. Thereare man$ different combinations possibleC this chapter will describe some of the possibilities.

@ote: 8 tach input is re%uired on 8?? installs includin! fuel)onl$.

,.1 Safet ?otes/!nition s$stems produce dan!erous volta!es in excess of 30C000V. Ta;e care to avoid shoc;.

,.2 *ran+ and *am tach inputsThe tach input is one of the most important si!nals !oin! into the Me!as%uirt and correct s$stem operation isnot possible until the tach input is correctl$ installed and confi!ured. Bntil the Me!asquirt reads the correctR0MC nothin! else will wor+.

7ven if $ou are startin! with fuel in ection onl$ &not controllin! i!nition' $ou must still provide the Me!as%uirt with

a tach input ) see coil ne!ative tri!!erin! in section *.(.1

The MS3,V3.0 as standard has a sin!le tach input. Iou must customiBe the board internall$ to select whetherthis input connects to the opto)isolator input for coil)ne!ative tri!!erin!C or to the DuniversalD tach input circuit.

/nstalls re%uirin! a second tach input &cam sensor or part of a


61/212


The sensor t$pes fall into a few basic families of sensors and the ri!ht wa$ to use the sensor depends more onthe t$pe rather than the particular vehicle or manufacturer. There are also a few PspecialP s$stems in use fromthe ei!hties that combine a sensor input with an i!nition driver output in one module. These will be discussedlater ) 2ord T2/C 2ord 7#/SC M -7/C M #/S.

/f $ou are considerin! an after)mar;etC non)57M sensor $ou must 7@S"=7 that it has a suitable temperatureratin!. T$picall$ en!ines run at around 100O


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b' Solder a wire between Vr5"T and TS7?

c' ith a small screwdriverC turn the potsC =*( and =* C about 1( turns anticloc;wise &sometimes $ou ma$ feela Pclic;P when the end position is reachedC the$ canDt be dama!ed b$ turnin! too far.' This sets them up for mostV= sensors.

5ptionall$C when ad ustin! =* C $ou can measure the volta!e at the PtopP of =*4. IouDll need the board poweredup. Set $our meter to voltsC and connect the Fve probe to the top of =*4 and the )ve probe to !round. 8d ust=* to !et the lowest volta!e on $our meter.

Some installs ma$ find it necessar$ to install a resistor inline with the V=F wire to reduce the si!nal volta!e athi!her =>Ms. T$picall$ a 10; 1,4 resistor is sufficient.

,.2.3 Hall sensor input The -all sensor is another commonl$ used cate!or$ of sensor. These are almost exclusivel$ a three wiresensor. /n a!e 3,(1(


64/212


part of the en!ine &cran;C cam sproc;et etc.'. 8s the ma!net passes the hall sensorC the output switches to!round.

The most common 57M arran!ement for a hall sensor is within a distributor. The vanes in the distributor rotateand bloc; or unbloc; a ma!net.

ith no vane between the ma!net and sensor ) the output is !rounded.ith a vane between the ma!net and sensor ) the output is inactive.

8bove: dia!rammatic representation.

9elow: 57M diBB$ modified to ma;e sin!le)tooth cam tri!!er.

There are two main cate!ories of hall sensor• open)collector &needs a pull)up resistor'• built)in pull)up resistor &covered in section *.(.4'

How to te t e di##erence?

ire up the power and !round connections to the hall sensor and connect a volt meter between the si!nal wireand !round. @ow rotate the vane assembl$ &turn the en!ine' or position the sensor b$ some steel and awa$from steel and see what volta!es $ou !et. /f $ou !et 0V in one state and close to *V &or 1(V' in the other stateC

&c' (014)* +ames Murra$ (01*)10)1( >a!e 4,(1(


65/212


then $our sensor almost certainl$ has a built in pull)up resistor. /f $ou !et 0V in one state and a fraction of a voltin the other stateC then $our sensor almost certainl$ does not have a built in pull)up resistor and will need oneinstallin!.

The followin! dia!rams show some of the principles involved.

The hall sensor re%uires a suppl$ volta!e which is usuall$ 1(V from a fused 1(V suppl$ or *V from the T>S=72output of the Me!as%uirt. The sensor is then !rounded at the Me!as%uirt sensor !round and the si!nal wireconnects to the Tach input. 8 pull)up resistor is re%uired in the wirin! harness or inside the Me!as%uirt.

&c' (014)* +ames Murra$ (01*)10)1( >a!e *,(1(


66/212


VR ,n"ut wit "u u" #or a sensors@ =S /9AB@ o"tica sensors or "oints

a' Solder a lin; between V=/@ and T8a!e ,(1(

Screenedcable ) ifused

Si!nalroundShield

Ha / geartoot / ogic / o"tica sensor

Tach in ] pin (4'Sensor !round atMe!as%uirt

1(V or *V power to sensor> =


67/212


5ptionall$C when ad ustin! =* C $ou can measure the volta!e at the PtopP of =*4. IouDll need the board poweredup. Set $our meter to voltsC and connect the Fve probe to the top of =*4 and the )ve probe to !round. 8d ust=* to !et around (.*V on $our meter.

,.2.4 Hall sensor input 69uilt in pull up7These sensors operate similarl$ to the hall sensors in section *.(.3 but include the pull)up resistor internall$ so

the !ive a 0V or *V si!nal.

&c' (014)* +ames Murra$ (01*)10)1( >a!e ,(1(


68/212


The hall sensor re%uires a suppl$ volta!e which is usuall$ 1(V from a fused 1(V suppl$ or *V from the T>S=72output of the Me!as%uirt. The sensor is then !rounded at the Me!as%uirt sensor !round and the si!nal wireconnects to the Tach input.

VR ,n"ut #or ogic in"ut e.!. T2/C 7#/SC M#/SC ?S1,(4 C modulesC hall sensor with built)in pullup

a' Solder a lin; between V=/@ and T8a!e ,(1(

Screenedcable ) ifused

Si!nalround

Shield

Ha / geartoot / ogic / o"tica sensor

Tach in ] pin (4'

Sensor !round atMe!as%uirt

1(V or *V power to sensor> =


69/212


d' Turn =* bac; about turns cloc;wise.

5ptionall$C when ad ustin! =* C $ou can measure the volta!e at the PtopP of =*4. IouDll need the board poweredup. Set $our meter to voltsC and connect the Fve probe to the top of =*4 and the )ve probe to !round. 8d ust=* to !et around (.*V on $our meter.

,.2., 5ear tooth sensor input

The !ear)tooth sensor is a variant of the hall sensor ) the ;e$ difference is that it has a ma!net built into it andswitches when close to steelC no external ma!nets are re%uired. This ma;es them ver$ eas$ to use. These arealmost exclusivel$ a three wire sensor. /n a!e 6,(1(


70/212


,.2.- 5M :S 24X cran+#cam sensorsThe sensors used on the ?S famil$ of M en!ines are desi!ned to read the cran; and cam tri!!ers specific tothose en!ines. The (4 cran; pattern uses a pair of ad acent toothed wheels and re%uires the specific Msensor.

The (4 st$le blac; sensors use a 1(V suppl$ and operate li;e a hall sensor with a built)in pull)up ) puttin! out a

0)*V lo!ic si!nal as the teeth pass.See section *.(.4 for !eneric wirin!. See section 7rror: =eference source not found for more details on (4installation.

,.2. 5M :S ,SV=72 and operate li;e an open)collector hall sensor asthe$ re%uire a pull)up resistor.

See section *.(.3 for !eneric wirin!. See section 7rror: =eference source not found for more details on *installation.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 0,(1(


71/212


,.2.< 'ptical sensor

The optical sensor is another commonl$ used cate!or$ of sensor. These are almost exclusivel$ a three wiresensor. /n M and load. @ow that Me!as%uirt will be controllin! thetimin! $ou will need to loc; out these mechanisms in $our distributor and li;el$ chan!e the phasin!.

Set the en!ine to approx 109T#


72/212


,.2.1% *om9ined (!nition module 6 (C E (SC HE(C 5M (S7Some i!nition modulesC particularl$ from the 16 0s combine the tach input and coil drivin! i!nition output withinone module. 8ll of them suppl$ a simple s%uare wave di!ital si!nal to the Me!as%uirt and should be connectedto the Tach input.

/t is important to be aware that while 2ord 7#/S and M #/S both have special toothed wheelsC themodule handles all the decodin! and presents a si!nal to the Me!as%uirt that loo;s li;e a distributorinput. ith these two modulesC the Me!as%uirt does not ;now or care how man$ teeth are actuall$ on the

wheelC so do not use the Ptoothed wheelP settin!. This also means that normall$ $ou cannot usese%uential fuel with these s$stems as no en!ine position information is available to the Me!as%uirt.

2ull confi!uration details for these specific installs are covered in the section .

,.2.11 ?issan *8S# 5M 'ptispar+ The Mitsubishi


73/212


5ptionall$C the low)resolution inner si!nal alone can be used with a sin!le coil and distributor in P9asic Tri!!erPmode.

5ptispar;.

hen usin! the stoc; tri!!er disc and P9asic Tri!!erPC the hi!h)resolution outer trac; is not used. The low)resolution inner trac; is connected to the Tach input.

Set the mainboard as per section *.(.3

&c' (014)* +ames Murra$ (01*)10)1( >a!e 3,(1(


74/212


$"ica settings+

Spar; mode Q 9asic Tri!!er

Tri!!er an!le,offset Q Start at 10 de! ) ad ust while strobin! timin!.

/!nition input capture Q ]]]]

@umber of coils Q Sin!le coil

,.2.12 45-3 # -5 2Some other hall or optical a!e 4,(1(

Me!as%uirt

Sensor@#

Tach in


75/212


the main tach input inverts the incomin! si!nalC so the added cam tach input must do the same. The su!!estedcircuits here respect that re%uirement.

9. .*7.* 8dding a cam sensor in"ut - VR/magnetic sensor

2or the #/IerC the most strai!htforward circuit for the cam input is based on the ?M1 1* chip. &8n alternative would replicate the cran; circuitC but for the #/Ier there are si!nificantl$ more components.'

9uild the followin! circuit in the proto area. The input pin chosen on the main #93 connector is $our choice.

9. .*7. 8dding a cam sensor in"ut - o"en-co ector a sensor / o"tica sensor

This option uses the spare opto)isolator on the mainboard for the cam input and matches the polarit$ inversionof the V=,universal tach input.

This section is for open)collector sensors as covered in *.(.3 that !round switch onl$.

a' The 5pto/n pad should be connected to a spare pin on the main #93 connector &e.!. S>=3' ) this is $ourcam input.

b'


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h' 2it or umper #1 and #(

9. .*7.7 8dding a cam sensor in"ut - ground switc ing

This option uses the spare opto)isolator on the mainboard for the cam inputC with the sensor in !round)switchin!mode. This will usuall$ !ive more reliable operationC but it does not match the polarit$ inversion of theV=,universal tach input ) this is not a problem in PToothed wheelP mode.

a' The 5pto/n pad should be connected to *V in the proto area.

b' =3' ) this is $our cam input.

d'


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,.3 (!nition outputsThe MS3,V3.0 has provision for a sin!le hi!h)current i!nition output as standard. "p to six i!nition outputs areavailable with suitable internal modifications.

5n re!ular i!nition installsC the i!nition outputs must be connected in firin! order se%uence.

e.!. a 4)c$l en!ine with coil)on)plu! and a 1)3)4)( firin! order would connect 8Q1C 9Q3C


78/212


ut"ut Resistor &P' "in

Spar; 8 Top of =(

Spar; 9 Top of =(6

Spar; < Top of =( 6

Spar; # +S11 1Spar; 7 +S* (6

Spar; 2 +S4 30

,.3.1 /uildin! i!nition outputs9.3.*.* Hig current out"ut (one)

This provides a sin!le hi!h)current i!nition output suitable for directl$ drivin! one inductive coil.

/nternall$C the follow is re%uired:) 9/>3 3 &mar;ed as 3011*' needs to be installed in H1 with a mica insulator.

) +umper / 9T5"T)/ @.

) 3 3 drivers can be installed inside the Me!as%uirt case. The simplest wa$ is to bu$ a secondheatsin; bar and install it above the existin! one. 7xtra 9/>3 3 can be bolted on with the correct mica insulator.

The hi!h current i!nition outputs can be routed throu!h a spare pin on the #93 connector or throu!h andadditional connector. /f usin! spare pins on the #93 be sure that the board traces are thic; enou!h. e.!.S>=1C(C3C4 have thin traces from the pads to the connector ) these need a umper wire in parallel. &8 spare le!from a resistor will do the ob.'

&c' (014)* +ames Murra$ (01*)10)1( >a!e ,(1(

Me!as%uirt

/ @&3 '

2used F1(V

from fuelpump rela$

& ith 9/>3 3 wiredto top of =( '


79/212


9.3.*.3 =ogic s"ar> out"uts - 1% dri!er met od

This circuit is suitable for drivin! ?S1 t$pe coils and man$ other lo!ic coils includin! V s with a low inputimpedance. See also section *.3.1.4 for a simple method.

)ith this wirin! the Spar+ output must 9e set to D5oin! Hi!hD.

Pros+


80/212


a!e 0,(1(

T<

44(

>roto @#

>roto *Vor S1(<

1*= 1,

1*= 1,Spar; 8

Spar; 9

Top of =(

Top of =(6

T<

44(

>roto @#

>roto *Vor S1(<

1*= 1,

1*= 1,Spar; <

Spar; #

Top of =(

+S11

T<

44(

>roto @#

>roto *Vor S1(<

1*= 1,

1*= 1,Spar; 7

Spar; 2

+S*

+S4


81/212


The dia!ram here shows the connections re%uired for four channels &e.!. 4c$l or c$l wasted spar;.' /f *thand th lo!ic channels are re%uiredC bui d additiona transistor circuits with the inputs +S* and +S4 and routethe output from the circuits to spare output pins of $our choice.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 1,(1(


82/212


9.3.*.9 "tiona 45*9 connector #or s"ar> out"uts

hen man$ additional spar; outputs are used and there are not enou!h free pins on the main connector it canbe necessar$ to add an additional connector. 9elow is a su!!ested pin arran!ement.

This connector can be used for hi!h current outputs as shown in section *.3.1.( or low current lo!ic outputs asshown in section *.3.1.3 .2or hi!h)current outputsC the !round pins shown on the connector are connected internall$ to the !rounds on the9/>3 3.

,.3.2 :o!ic coilsThese coils can directl$ accept the 0)*V lo!ic level si!nal from the Me!as%uirt. The contain an i!nition driverand a coil within the pac;a!e.

&c' (014)* +ames Murra$ (01*)10)1( >a!e (,(1(

Gooen!ine!roun

Sp; 2irin! order89<#

72


83/212


?S1 &left'C ?S( middle'C Truc; &ri!ht' coils

8 dwell fi!ure of 3.*ms is advised for ?S1 coils.&was 4.*'

@ote that some coils have a built)in over)dwell protection feature. /f !iven too much dwell the coil will

automaticall$ spar;. This can !ive a dan!erous advanced spar;. 9e sure to strobe $our timin! at hi!h revs toensure this is not happenin!.

Set the Spar; 5utput to oin! -i!h. 9uild circuit in section *.3.1.3

8 dwell fi!ure of 3.*ms is advised for ?S( coils. &was 4.*'

@ote that some coils have a built)in over)dwell protection feature. /f !iven too much dwell the coil willautomaticall$ spar;. This can !ive a dan!erous advanced spar;. 9e sure to strobe $our timin! at hi!h revs toensure this is not happenin!.


49A9 truc> coi

Pin-out8 Q >ower !round to en!ine bloc;9 Q Si!nal !round &connect to sensor !round'< Q Spar; input si!nal# Q 1(V suppl$


84/212


8 dwell fi!ure of 3.*ms is advised for truc; coils.

@ote that some coils have a built)in over)dwell protection feature. /f !iven too much dwell the coil willautomaticall$ spar;. This can !ive a dan!erous advanced spar;. 9e sure to strobe $our timin! at hi!h revs toensure this is not happenin!.


=S coi "ac> mu ti-" ug

Pin-out and t$"ica co ors8 Q blac; Q power !round9 Q red Q si!nal coil < Q !reen Q si!nal coil 7 Q brown Q si!nal !round2 Q li!ht blue Q si!nal coil I

Q purple Q si!nal coil E- Q pin; Q 1(V suppl$

&c' (014)* +ames Murra$ (01*)10)1( >a!e 4,(1(


85/212


86/212


,G *8 ogic coi

8 ) /!nition si!nal from Me!as%uirt

9 ) ?o!ic !roundC connect to Me!as%uirt sensor !round

< ) Spar; wire !roundC connect to c$linder head

# ) >ower !roundC connect to batter$ ne!ative

7 ) 1( volt power &switched and fused'


This is a hi!h ener!$ aftermar;et lo!ic coil available from #/I8utoTune.com.

0 007- 70 00* - sing e ogic coi

>in)out

1 Q >ower round &9rown'( Q Spar; input si!nal 1 &9lac;,=ed'

3 Q 1(V suppl$ &9lac;'


2itted to man$ V8 vehicles includin! (.0 litre m;3 olfs 1663)1666. #esi!ned to be used as a sin!le coil with adistributor.

/ntermotor 1(61

&c' (014)* +ames Murra$ (01*)10)1( >a!e ,(1(

Switched 1(Vsuppl$

Me!as%uirt

Goodengineground

3

(

1

Spar; 8


87/212


03 C09 *0:5 - 7 tower wasted s"ar> ogic coi

>in)out

1 Q Spar; input si!nal 1

( Q 1(V suppl$

3 Q Spar; input si!nal (

4 Q >ower round


The connector is 1+0 6 3 (4

This cost effective 57M lo!ic wasted coil has a built)in i!nitor.

2itted to man$ V8 vehicles includin! 1. litre m;4 olfs.

/ntermotor 1(616

&c' (014)* +ames Murra$ (01*)10)1( >a!e ,(1(

Switched1(V suppl$

Me!as%uirt

Gooen!ine!roun

4

1

To spar;plu!s (\3

Spar; 8

Spar; 903(60

10

9

43(1

To spar;plu!s 1\4


88/212


0:8C090C6 - 7 wa$ ogic coi

4 wa$ lo!ic coil from V olf , +ettaC S;oda 5ctavia

"ses part numbers 004010(0(6C 0 860*06 C0 860*104C ES70(6

The connector is a polarised 9osch Aompact wa$.1+06 3 ( ) a$ Sealed 2emale in)out

1 Q >ower round( Q Spar; input si!nal 1

3 Q Spar; input si!nal (


* Q Spar; input si!nal 4

Q 1(V suppl$

&c' (014)* +ames Murra$ (01*)10)1( >a!e ,(1(

0 3 8 6 0 * 0 6 4

Switched1(V suppl$

Me!as%uirt

Gooen!ine!roun

1

Tospar;plu!s


89/212


0:5 C09 **9 - 7 wire ogic & P

V8 >,@ 0 9 60* 11* s: used on V 1. t andma$ other V8 cars.

>in 1: in 1 on all other coils and then toF1(v i!nition feed &or fuel pump rela$'

>in (: Si!nal !round &connect to en!ine bloc;'

>in 3: Spar; Si!nal from Me!as%uirt

>in 4: >ower !round &connect to en!ine bloc;'

7arlier than (001 coilsC >@ ) 0 9 60* 11*C 0 9 60* 11*rev 9 and 7.

These have an input resistance of 1; and should wor;5A with the Me!as%uirt outputs.

@ 0 9 60* 11* rev ? and = have a low input resistance. The circuit in section *.3.1.3 can drive these fine &other circuits ma$ not wor; correctl$.'

8side from these specific examplesC there are man$ !eneric 3C 4C * wire s that can be used with theMe!as%uirt.

9efore usin! an Pun;nownP coil it is necessar$ to chec; the resistance to !round on the input.

"sin! a multimeter set to resistanceC chec; between the Spar; Si!nal /nput and Si!nal round.

/f $ou have a readin! of sa$ 1; then the Me!as%uirt outputs can be used directl$.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 6,(1(


90/212


3)wire s are ambi!uousC man$ are hi!h)current &needin! an i!nitor'C some ma$ be lo!ic level with a built indriver. >erform a resistance chec; on the si!nal input to confirm. -i!h current will have an input resistance to1(V of a few ohms onl$.

s with 4 or * wires have a built in amplifier &i!nitor' so the$ re%uire that $ou build the circuit in section*.3.1.3 and set the Spar; 5utput to oin! -i!h.

,.3.3 8mplifiers 6i!nitorC power transistorC i!nition module78n i!nition amplifier module ta;es a *V lo!ic si!nal from the Me!as%uirt and drives a hi!h)current i!nition coil.

This can be advanta!eous to ;eep i!nition noise outside of the Me!as%uirtC or $our en!ine ma$ alread$ haveone.

There are man$ different modules available on the mar;et with 1C (C 4 i!nition channels.

9osch st$le 1C (C 4 channel i!nitors and Huadspar; 4 channel i!nitor.

5osc 0 6 *00 * 7

in)out

1 Q ower round

3 Q /nput screen &if used'

4 Q 1(V suppl$

* Q Spar; input si!nal

&c' (014)* +ames Murra$ (01*)10)1( >a!e 60,(1(


91/212


Q @<

& Q @a!e 61,(1(


92/212


5osc 0 6 *00 **

in)out &* pin'


( Q Spar; input si!nal (

3 Q >ower round


* Q Spar; input si!nal 4

>in)out &4 pin'

&c' (014)* +ames Murra$ (01*)10)1( >a!e 6(,(1(


93/212


1 Q


94/212


Violet 1 !au!e Spar; 5utput # &to coil ne!ative'9lac; 4 x 14 !au!e round &to en!ine bloc; or c$linder head'

=ecommended ) build circuit in section *.3.1.3 . Set the Spar; 5utput to oin! -i!h.

The wirin! in section *.3.1.4 is not recommended.

8s an alternativeC install 330= resistors in the protot$pe area. "se a umper wire to connect one end of theresistor to the " spar; si!nal and a second umper wire to the chosen #93 connector pin. Set the Spar;5utput to oin! -i!h.

ut"ut Resistor in Resistor out

Spar; 8 Top of =( / @

Spar; 9 Top of =(6 $our choice

Spar; < Top of =( $our choice

Spar; # +S11 $our choice

Spar; 7 +S4 $our choice

Spar; 2 +S* $our choice

The dia!ram shows connection to sC but the module can also be used to drive hi!h current coilpac;s &2ordCa!e 64,(1(


95/212


,.3.4 Hi!h current coilsThis t$pe of coil re%uires a a hi!h current driver as per section *.3.1.1 or an amplifier as per section *.3.3

Shown are conventional sin!le coilC M wasted spar; coilC 2ord wasted spar; coil)pac;C =enault ()wire .8ll of these coils are hi!h current coils and re%uire an i!nition amplifier module &i!nitor' to connect to theMe!as%uirt.

&on!entiona coi s and DDdumbD ()wires.

The connections are :• switched,fused 1(V suppl$• output from i!nitor.

The resistance measuredbetween the inputs will be a fewohms onl$.

=e%uires an i!nitor or customiBation forhi!h current outputs

&c' (014)* +ames Murra$ (01*)10)1( >a!e 6*,(1(


96/212


wire wasted s"ar> coi s ) li;e the Mcoil.

The connections are :•

switched,fused 1(V suppl$• output from i!nitor.

The resistance measuredbetween the inputs will be a fewohms onl$.


7-tower wasted s"ar> coi -"ac> suchas 2ord &7#/S st$le' @eonC V andothers.

The connections are :• switched,fused 1(V suppl$• output from i!nitor &left and ri!ht'

The resistance measuredbetween 1(V and the primar$

wires will be a few ohms onl$.


,.3., * ( modules 6e.!. MS C *rane etc.7T$pical a!e 6 ,(1(


97/212


MS# is a well ;nown brand and we will cover their wirin! scheme here. 5ther manufacturers use similar wirin!colorsC but chec; the supplied dia!rams.

• tach si!nal is a $ellow wire ) do not connect this to Me!as%uirt.• spar; control si!nal is a white wire ) connect this to the Me!as%uirt.• !round is a heav$ blac; wire• permanent 1(V power is a heav$ red wire• switched 1( volts is a thin red wire• the coil positive &F' wire is oran!e• the coil ne!ative &)' wire is thin blac;• the unused V= si!nal wires are !reen and violet.

ith the MS# i!nition boxC we use the white DpointsD input wire. #o not connect an$thin! to the !reen and violet wires. The MS# box is onl$ bein! used to fire the coil. The Me!as%uirt must receive its tach input from a cran;or distributor pic;)up.

,.3.- MaAda Rotar i!nition wirin!7arl$ MaBda rotar$ en!ines used a distributor and conventional coilsC these are not covered here.

?ater en!ines used 72/ and distributorless i!nition with a number of specific multiple coil setups. /n the tunin!softwareC ensure that the en!ine stro;e is set to P=otar$.P

There are three main modes of the Me!as%uirt rotar$ i!nition support• 2< mode ) uses a wasted spar; coilpac; for leadin! plu!s and individual trailin! coils.

7xternal i!nitors are used. 5ne for the leadin! coil and a combination i!nitor for the trailin! coils.• 2# mode ) uses a wasted spar; coilpac; for leadin! plu!s and individual trailin! coils

7xternal i!nitors are used. 5ne for the leadin! coil and one each for the trailin! coils.• = mode ) uses one lo!ic coil per plu! &four in total'

&c' (014)* +ames Murra$ (01*)10)1( >a!e 6 ,(1(


98/212


Mode -E 1& 14 RBA

umber o# coi s asted Spar; asted Spar; lu!

ut"ut mode 2< 2# 2#

S"ar> 8 ?eadin! &/ t)?' ?eadin! 2ront ?eadin!

S"ar> 5 Trailin! Select &/ s)T' 2ront Trailin! 2ront Trailin!S"ar> & Trailin! Tri!!er &/ t)T' =ear Trailin! =ear Trailin!

S"ar> 4 &not used' &not used' =ear ?eadin!


The leadin! coil feeds the upper spar; plu!sC and trailin! the lower plu!s. The front &cran; pulle$ end' rotor isconsidered rotor 1.

9e aware that the output namin! in P5utput Test Mode /n ,Sp;P is sli!htl$ different ) coil 8C9 are the leadin!coilsC coil in 8 Q lo!ic si!nal in

>in 9 Q power !round

>in < Q 1(V suppl$

,.3. o ota :( i!nition wirin!Some To$otas use a s$stem named P#?/P that connects between the 7


99/212


&c' (014)* +ames Murra$ (01*)10)1( >a!e 66,(1(

Me!as%uirtSpar; <

Spar; 9

Spar; 8

To$ota#?/

& c$l'/ d9/ f

/ d8

/ t

/ c3

/ c(

/ c1To

i!nitioncoils


100/212


:+ ,gnition s$stem - s"eci#ic o"erating modesThe Me!as%uirt ran!e supports man$ different tach input and output schemes includin! man$ 57M specificconfi!urations.

2or installations on en!ines without a supported tach inputC a 3 )1 tri!!er wheel on the cran;shaft is thesu!!ested setup.-ere are all of the Dspar; modesD supported b$ the Me!as%uirt)3 product ran!e and whether the$ support wastedspar; & ,S' and ,se% &coil)on)plu! or se%uential fuel' or not on a 4)stro;e en!ine. ()stro;e en!ines onl$need a missin! tooth wheel on the cran;shaft for se%uential fuel and spar;.

@ote that even if $our tri!!er input could support ,se%uentialC $our 7 Mode &amin"ut

needed?

/S ? & P/seq ?

8"" ications

2uel onl$ @ @ @ Various for fuel onl$ &no spar; control'

7#/S @ I @ 7arl$ to mid 1660s 2ords 4C C c$l9asic tri!!er &distributor' @ @ @ idespread ) -7/ C M#/SC T2/C distributor

Tri!!er =eturn @ @ @ T$picall$ 16 0s V hall distributors

Toothed wheelPMissin! tooth wheelP on cran;PMissin! tooth wheelP on camPMissin! tooth wheelP on cran; Fsin!le tooth on camP#ual wheelP non missin! on cran;F sin!le tooth on cam&3 )1C 0)(C 4)1C (4,1C (4,(C )1

etc.'

Varies Varies Varies 2ordC 9osch 7


101/212


S"ar> Mode &amin"ut

needed?

/S ? & P/seq ?

8"" ications

=enix 44)()( @ @ /f camused

=enault 4c$lC also V with )()()(

SuBu;i SwiftR @ @ @ #istributor tri!!er wheel

SuBu;i Vitara (.0R @ I @ SuBu;i Vitara (.0

#aihatsu 3c$lR @ @ @ 3F1 cam tri!!er

#aihatsu 4c$lR @ @ @ 4F1 cam tri!!er

VT=1000R @ I @ 1()3 on cran;

=overG1R @ ] /f camused

=over A Series 3 )1)1

=overG(R @ ] /f camused

=over A Series 3 )1)1)1)1

=overG3R @ ] /f camused

=over A Series 3 )()(

M R @ I /f camused

#irect from sensor b$passin! M#/Smodules.

H=(*#7R I I I @issan

-onda =


102/212


S"ar> Mode &amin"ut

needed?

/S ? & P/seq ?

8"" ications

Viper V10 I I I (nd en Viper V10

Viper V10 en1 I I I 1st en Viper V10

-onda A(48( I I I

-# 3()(R @ @ I -arle$ 4*de! V)twin. sensorfor phase detection or use a cam sensor.

Miata 3 )(R @ I /f camused

2l$inD Miata custom 3 )( wheel fitted to 66)0* en!ine.

#aihatsu 1(F1 &@' I I #aihatsu 72)S7 en!ine 3 c$l

R indicates a confi!uration that has received less usa!e in the field and ma$ be less well proven. >roceed withcaution or discuss with $our supplier before usin!.

=unnin! excessive timin! under load will almost alwa$s cause severe en!ine dama!e suchas bro;en pistons.

,t is essentia t at timing is con#irmed wit a timing- ig t on %V%RF insta .

@5T7 The tach input polarities provided in section are for reference onl$ and sub ect toreview.

-.1 *oil ne!ative for fuel onl

2or fuel)onl$ installs it is possible to obtain a tach in tri!!er from the ne!ative terminal of a sin!le coil. @ote thatthis wonDt wor; well on a wasted spar; setup and must never be connected to a


103/212


104/212


T$pical ori!inal arran!ement

T$pical arran!ement with 7


105/212


Iou ma$ be able to set the rotor output phasin! 2/=ST and then rotate the baseplate to achieve the correctinput phasin!.

?ater en!ines ma$ feature a distributor in con unction with computer controlled timin! ) usuall$ these distributorare Ploc;edP from the factor$ and should alread$ have !ood input and output phasin!. &e.!. 2ord T2/C M-7/ , C 9osch hall effect.' 8li!n as per the factor$ manuals and determine how it is phased before $ou modif$an$thin!

The cran; an!le at which the tach input tri!!ers is of importance and needs to be confi!ured in the Me!as%uirt.2or best spar; control there are some optimal and some disallowed cran; an!les.

8 t$pical en!ine will have an operatin! advance ran!e of sa$ 10)*0 9T#< timin! &dependin! on en!ine t$pe.'The tri!!er must not happen durin! this ran!e of an!les.

/t can be reall$ helpful to install timin! tape on $our cran; pulle$ or temporaril$ mar; on a ran!e of an!les.

2or best accurac$ at hi!h revs or durin! transientsC aim for the tri!!er to ali!n at 0)60 9T#


106/212


8llowed hi!h an!les

Timin! allowed in normal ran!e &up to * de!reesless than tri!!er an!le.' =etarded 8T#< timin!possible.

#isallowed an!les.

#o not use a tri!!er an!le between 1 and *4de!rees.

iming wi not wor> correct $.

#istributor must be moved or re)phased.

8llowed low an!les

Timin! allowed in normal ran!e &!reater thantri!!er an!le.' =etarded 8T#< timin! notpossible.

5nce the tach input is setup it is important to confirm the output phasin! is correct.

-.2.3 Rotor # 'utput phasin! all distri9utor installs=otor phasin! is


107/212


hen usin! the distributor for the tach input as wellC beware of ust rotatin! the distributor ) that would chan!e

the input phasin! that $ou alread$ set ) $ou ma$ need to ma;e a ph$sical modification to rotate the rotor arm.&e.!. weld up the locatin! slot and cut a new one.' /f $ou moved the distributorC !o bac; and re)set the inputphasin!.

This potential conflict between input and output phasin! is wh$ a cran; tri!!er is stron!l$ recommended.

/f $ou are cran; tri!!erin! and the distributor is onl$ used for the spar; distribution then $ou can simpl$ rotatethe diBB$ to achieve the re%uired rotor phasin!. /n this case it is not necessar$ to Dloc;D the distributorC $ou canunhoo; the vacuum canister and leave the mechanical advance operational.

-.2.4 istri9utor with hall#optical tri!!er return The purpose of the PTri!!er =eturnP mode is to have accurate cran;in! timin! as well as accurate runnin!timin!. /t achieves this b$ usin! the si!nal from both ed!es of a vane,slot. 5ne ed!e is used for the timin!calculations durin! runnin! and will t$picall$ pass the sensor at **9T#< or more. The other ed!e is used forcran;in! timin! and must pass the sensor at the desired cran;in! advance an!le e.!. 109T#<

This scheme was commonl$ used b$ V durin! the 16 0s with a loc;ed hall)effect distributor.

DTri!!er returnD ma$ onl$ be used if the slots,shutters,vanes in the distributor are evenl$spaced and e%ual siBed.

#o not tr$ to use Dtri!!er returnD with man$ @issan optical pic;ups or with si!nature)>/> T2/ as these haveuneven slots,vanes.

See section *.( for wirin! details on the tach input.


108/212


8. -all,opto distributorshowin! inactivetri!!er.

9. 7n!ine rotatedforwards until ed!e atsensor.The cran; an!le here isthe PTri!!er 8n!leP


109/212


The output phasin! on an 57M tri!!er)return t$pe distributor installed in the normal position should not re%uiread ustment.

Tri!!er)return can also be used with a latchin! hall sensor and pairs of ma!nets on a cran; tri!!er. 5ne pole&e.!. @' tri!!ers and latches the sensor and the other pole &e.!. S' un)latches the sensor. This could be ofparticular use on sin!le c$linder en!ines to !ain accurate cran;in! and runnin! timin!. /n this case no distributoris used and a sin!le coil is connected directl$ to the spar; plu!.

-.2., istri9utor with 9asic cran+ tri!!er /nstallin! a Pfl$in! ma!netP cran; tri!!er !ives more accurate i!nition control than usin! a distributor basedpic;up as it eliminates timin! chain and cam)!ear slop. /t also eliminates the hassle of re)phasin! the distributor.

2or best timin! accurac$C it is recommended that the fl$in! ma!net passes the pic;up sensor when the en!ine isaround 09T#ush StartPand P5"TD connections are ofinterest. The other connections should be left stoc;.

Pus -Start (PS) !s. &om"uter &ontro ed 4we (&&4)The module described mainl$ here is the D>SD t$pe that uses a 1(V start si!nalC it is claimed to be !ra$ in color.*0 dwell dut$ should be used.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 106,(1(


110/212


The D5"TD disconnected' is around 109T#


111/212


$"ica Settings

Spar; mode Q P9asic Tri!!erP

Tri!!er an!le,offset Q 10 9T#< as a startin! pointC fine tune with a timin! li!ht.

/!nition capture Q P2allin! ed!eP

Spar; output Q P oin! -i!hP

Spar; 8 output pin Q P?7#s Spar;P

#well t$pe Q P2ixed dut$P#well dut$ Q P*0 P

-.4 5M HE( The ori!inal P-i!h 7ner!$ /!nitionP &-7/' distributors used the 4 pin module from the earl$ 16 0s is fine in thebrea;erless distributor as desi!nedC but is not suitable for computer timin! control. The later and pinmodules and correspondin! distributors are desi!ned for computer control and should be an eas$ swap ontoearlier en!ines ) not onl$ are those modules intended for computer controlC but their distributors are alread$loc;ed)out so no modifications are re%uired. -7/ , uses three control wires to,from the Me!as%uirt.

The D=efD si!nal from the module to the Me!as%uirt !ives rpm and en!ine position information.

The D7stD si!nal from Me!as%uirt to the module controls the advance when runnin!.

The D9$passD si!nal from Me!as%uirt to the module allows the module to beneficiall$ control its own advancedurin! cran;in!. 5nce the en!ine has been runnin! for more than * secondsC the Me!as%uirt ta;es control oftimin!.

> Q >ositive from V= sensor

@ Q @e!ative from V= sensor

7 Q 7lectronic spar; timin! &7ST' from Me!as%uirt / @

= Q =eference &=72' to Me!as%uirt Tach in

9 Q 9$pass from Me!as%uirt b$pass output &S>=3 shown'

&c' (014)* +ames Murra$ (01*)10)1( >a!e 111,(1(


112/212


Set the mainboard as per section *.(.4

Ma;e the followin! modifications:

8dd 1; 1, resistor from &)' of #14 to the ri!ht hand side of the resistor below.

8dd 1; 1, resistor from &)' of #1 to the ri!ht hand side of the resistor below.

+umper from &)' of #14 to / @

+umper from &)' of #1 to S>=3 &or $our chosen pin'

&c' (014)* +ames Murra$ (01*)10)1( >a!e 11(,(1(


113/212


$"ica Settings


/!nition capture Q P=isin! 7d!ePSpar; output Q P oin! ?owP


#well t$pe Q PStandard #wellP

@ominal #well Q P3.0P

M,-7/ options Q P M b$passP

-., 5M HE(<This wor;s the same as -7/ C but the module is pac;a!ed differentl$.

The same internal modifications are re%uired as for -7/ in section .4> Q >ositive from V= sensor

@ Q @e!ative from V= sensor

Q round to Me!as%uirt Sensor !round

9 Q 9$pass from Me!as%uirt b$pass output &S>=3 shown'

= Q =eference &=72' to Me!as%uirt Tach in

7 Q 7lectronic spar; timin! &7ST' from Me!as%uirt / @

&c' (014)* +ames Murra$ (01*)10)1( >a!e 113,(1(


114/212


$"ica Settings


/!nition capture Q P=isin! 7d!eP

Spar; output Q P oin! ?owP





-.- ual S nc istri9utor 8 dual)s$nc distributor is an aftermar;et loc;ed distributor that provides a clean tri!!er si!nal for an 7


115/212


-. ord E (S

2ordDs 7lectronic #istributorless /!nition S$stem &7#/S' is an i!nition s$stem that does not re%uire a camposition si!nal. /t re%uires a variable reluctor &V=' sensor and a 3 )1 tooth cran; wheel &3 )1 means D3 teethminus oneDC and refers to 3 evenl$ spaced teethC one of which has been removed'C it will not wor; with otherpattern wheels or hall sensors.

7#/S is a particularl$ eas$ wa$ to install pro!rammable i!nition control on an older en!ine with a distributor. The7#/S modules are ver$ reliable and the s$stem wor;s well. The 7#/S module itself handles all the decodin! ofthe toothed wheel and sends one pulse per c$linder to the 7


116/212


-. .2 E*B wirin!

Set the mainboard as per section *.(.4.

The followin! internal modifications are re%uired:

a' 7nsure that H1 is not fitted.

b' =un a umper wire from +S10 to / @

&c' (014)* +ames Murra$ (01*)10)1( >a!e 11 ,(1(


117/212


$"ica Settings

Spar; mode Q P7#/SP

/!nition capture Q P=isin! 7d!eP

Spar; output Q P oin! -i!hP

Spar; 8 output pin Q P+S10P

-. .3 Module wirin!The 7#/S s$stem comes in three varieties : 7#/S4C 7#/S C 7#/S which are suited to even)fire 4C C c$linderen!ines. The specific wirin! of the module varies sli!htl$ between the variants.

&c' (014)* +ames Murra$ (01*)10)1( >a!e 11 ,(1(


118/212


&c' (014)* +ames Murra$ (01*)10)1( >a!e 11 ,(1(


119/212


-. .4 3- 1 tri!!er wheel and $R sensor The relationship of the V= sensor and the missin! tooth is critical. The 7#/S module expects and re%uires aspecific phasin!.

5n en!ines ori!inall$ e%uipped with 7#/S this will alread$ be set. ?ater 2ord en!ines also maintain the samephasin! even thou!h the 7#/S function is now built into the 7wise rotation (norma ) - met od a

Set $our en!ine at T#a!e 116,(1(


120/212


:.6.7. %4,S7 - & oc>wise rotation (norma ) - met od b

Turn $our en!ine to 60 9T#wise rotation (norma ) - met od a

Set $our en!ine at T#a!e 1(0,(1(


121/212


:.6.7.7 %4,S: - & oc>wise rotation (norma ) - met od b

8 different wa$ of loo;in! at the S8M7 phasin!.Turn $our en!ine to 0 9T#wise rotation (norma ) - met od a

Set $our en!ine at T#a!e 1(1,(1(


122/212


:.6.7.: %4,SA - & oc>wise rotation (norma ) - met od b

Turn $our en!ine to *0 9T#


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:.6.7.6 %4,S7 anti-c oc>wise

8nti)cloc;wise rotation.The same appliesC but directions are reversed.

-. ., *hec+in! the timin!8s with all installsC it is important to confirm the timin! is correct. To test this it is best to first run the 7#/S in limphome mode. This can be achieved b$ disconnectin! the S8 plu!,soc;et or switchin! off,unplu!!in! the 7


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= Q =eference &=72' to Me!as%uirt Tach in.

7 Q 7lectronic spar; timin! &7ST' from Me!as%uirt / @ &3 '

These settin!s need confirmin!.

/!nition capture Q P2allin!P &chec; '

Spar; output Q P oin! -i!hP &chec; '





-.= oothed )heel The Toothed heel mode is desi!ned to support most combinations of re!ular missin! tooth wheels with or

without a cam si!nal. /t is the most commonl$ used Pspar; modeP for tach input.

Va

ms3basev30 hardware 1.4

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