air flow sensor

8/13/2019 Air Flow Sensor

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AIR FLOW SENSOR (AFS)

CIRCUIT DIAGRAM

HOT FILM AFS OUTPUT FEATURES

Mass air flow (kg!) O"#$"# %ol#ag& (')

10 1.2226 - 1.2398

15 1.3552 - 1.3778

30 1.6783 - 1.7146

60 2.1619 - 2.2057


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120 2.7215 - 2.7762

250 3.4388 - 3.5037

370 3.8796 - 3.9511

480 4.1945 - 4.2683

640 4.5667 - 4.6469

TEST PROCEDURE


3/23

TROULESHOOTING HINTS1.When Ignition switch is turned on, if A! out"ut #o$t%ge is not &0& 'engine sto"s(, ins"ect the

)%$function of A! %nd *+.

2.*#en though A! out"ut #o$t%ge is %nor)%$, if engine is %t id$e ,ins"ect the fo$$owing conditions.

'1(+hect the "oor %tt%ch)ent of %irf$ow, cut %ir duct, %nd %ir c$e%ner fi$ter r%nched fro) A!.

'2(%d co)ustion in the c/$inder or f%u$t inector.

3.*#en it no A! )%$function occurs, chec the )ounting direction of A!.

%. se correct digit%$ #o$t)eter.

. efore ins"ection, w%r)ing u" the engine ti$$ the engine coo$%nt te)"er%ture is u" to 8090+.

AFS HARNESS INSPECTION PROCEDURES


4/23

ATS (INTAE AIR TEMPERATURE SENSOR) HARNESS INSPECTIONPROCEDURE


5/23

TEST PROCEDURE (ATS)

SENSOR INSPECTION1.Ins"ect the resist%nce of sensor using % )u$ti-tester.

2.e%sure the resist%nce etween A! %nd ter)in%$.

+II **:A:* '+( :*!I!A+* ';(

Ignition switch -40 39.260

-30 22.960

-20 13.850

-10 8.609


6/23

0 5.499


7/23

TROULESHOOTING HINTSWhen id$ing s"eed is not %""ro"ri%te or $%cs)oe %rises it is $ie$/ to e % defect of w%ter te)"er%ture

sensor.

HARNESS INSPECTION PROCEDURES


8/23

SENSOR INSPECTIONUSING HI*SCAN

+hec ite) %t% dis"$%/ +hec conditions +oo$%nt te)".!et #%$ue

'=I-!+A(

W%ter

te)"er%ture

sensor

!ensor

te)"er%ture

Ignition switch > or engine running -20+ -20+

0+ 0+

20+ 20+

40+ 40+

80+ 80+

USING MULTITESTER1.:e)o#e the w%ter te)"er%ture sensor fro) the engine coo$%nt "%ss%ge of the c/$inder he%d.

2.With the te)"er%ture sensing "ortion of the engine coo$%nt te)"er%ture sensor i))ersed in hot w%ter,

chec resist%nce.

'1(W! sensore)"er%ture '+( :esist%nce ';(

-40 48.14

-20 14.13 16.83

0 5.790

20 2.31 2.59

40 1.148

60 0.5865

80 0.3222

100 0.1884

110 0.1451 0.1491

120 0.1163


9/23

'2(?%uge unit

e)"er%ture '+( :esist%nce ';(

60 125

85 42.6 54.2

110 22.1 26.2

125 15.2

3.If the resist%nce de#i%tes fro) the st%nd%rd #%$ue gre%t$/, re"$%ce the sensor.

INSTALLATION1.A""$/ se%$%nt @+I* 962 or eui#%$ent to thre%ded "ortion.

2.Inst%$$ w%ter te)"er%ture sensor %nd tighten it to s"ecified torue.

ightening torue >2.0 4.0gB)

3.+onnect the h%rness connector secure$/.

CAMSHAFT POSITION SENSOR (TDC)

CIRCUIT DIAGRAM


10/23



11/23

CRANSHAFT POSITION SENSOR (CP)

CIRCUIT DIAGRAM


12/23



13/23

IN+ECTOR

CIRCUIT DIAGRAM


14/23


IN+ECTOR OPERATION INSPECTION1.sing % c$i"-on %))eter of )otor tester, chec %ctu%tion of inector. +$i"-on %))eter )ust s%tist/ the

fo$$owing conditions.

e%suring r%nge C25A

%ndwidth C 100=D

2.Att%ch the "$ug to the inector. %sten c$i"-on %))eter %round $e%d to "in.2 of corres"onding inector.

A$$ow engine to e %t id$e.

:efer to the set #%$ue'current( %s fo$$owing figure.

%. @ength of ho$ding current "h%se ')%E.12A( is go#erned / engine s"eed, inection ti)e %nd

ch%nges on #e$ocit/.


15/23

. he first current cur#e shows the "re-inection.

3.+hec the inector for inecting of fue$. As checing "rocedure, det%ch the inector "$ug fro) e%ch oEes

%nd connect to re"$%ced inector.

If ch%nge to enine running resu$ts, inector is inecting. If no ch%nge to engine running resu$ts, inector isnot inecting.

his test c%nnot howe#er est%$ish whether %n inector is inecting %n correct u%ntit/.

If necess%r/, %$$ inectors h%#e to e re"$%ced.

AFTER RUN TEST1.e%sure the su""$/ #o$t%ge %t *+ "in 114'+$inder F1 Inector(, "in 119 '+$inder F4 Inector( to "in 117

%nd "in 120'+/$inder F3 Inector(, "in 121'+/$inder F2 Inector( to "in 118 with ignition .

!et #%$ue > 0G

2.+hec wiring if set #%$ue is not %tt%ined. If wiring is H, re"$%ce the *+.MEASURE THE RESISTANCE ETWEEN TERMINALS1.et%ch the connector fro) inector.

2.e%sure the resist%nce etween ter)in%$s.

!"ecified #%$ue >

0.3 0.6; '%t 20+(

3.+onnect the connector to the inector.

RAIL PRESSURE SENSOR (RPS)


16/23

CIRCUIT DIAGRAM

SENSOR INSPECTIONUSING HI*SCAN

+hec ite) %t% dis"$%/ +hec conditions :%i$ "ressure!et #%$ue

'=I-!+A(

:%i$ "ressure sensor :%i$ "ressure *ngine %t id$e 220 - 300%r 260%r



17/23

SENSOR REPLACEMENT1.:e"$%ce the :! if sign%$ #o$t%ge eEceeds the set #%$ue.

2.ote the fo$$owings.

'1(A$w%/s renew the se%$ing w%sher 'soft iron se%$ing ring( e#en if o$d sensor is re-used.

'2(When re)o#ing se%$, t%e c%re not to d%)%ge se%$ing surf%ce.

'3(When inst%$$ing :!, "ro#ide the se%$ing w%sher with gre%se if necess%r/.

'4(ightening torue is 352 B) '25.81.5 IBft(

:e"$%ce the f%u$t/ fue$ r%i$ %sse)$/ in c%se of new )ode$ #ehic$e within % /e%r, or re"$%ce the

f%u$t/ "%rts of #ehic$e of which )ode$ /e%r is )ore th%n % /e%r.

EGR SOLENOID 'AL'E


18/23

CIRCUIT DIAGRAM



19/23

EGR SOLENOID 'AL'E INSPECTIONUSING HI*SCAN

+hec ite) +hec condition *ngine condition !t%nd%rd #%$ue

*?: so$enoid #%$#e so$enoid #%$#e

J

Ignition switch > +hec the sound for

"ro"er o"er%tion

USING 'OLTMETER

+hec ite) !"ecified #%$ue

*?: so$enoid #%$#e resist%nce 14 17;

RAIL PRESSURE REGULATOR (MPROP)

CIRCUIT DIAGRAM


20/23

TROULESHOOTING HINTSAt %fter run test )ode or fue$ cut )ode, if within set ti)e engine r") is not dro""ed e$ow the $ower set

#%$ue, error is detected. he re%sons %re short circuit, connecting resist%nce, f%u$t/ r%i$ "ressure sensor,

continuit/ of fue$ "u)" re$%/, f%u$t/ r%i$ "ressure contro$ #%$#e, defecti#e high "ressure "u)", *+ f%u$t,etc.



21/23

RAIL RPRESSURE REGULATOR INSPECTIONUSING 'OLTMETER

+hec ite) !et #%$ue ';(

:%i$ "ressure contro$ #%$#e resist%nce 2.93.15;

:e"$%ce the f%u$t/ fue$ r%i$ %sse)$/ in c%se of new )ode$ #ehic$e within % /e%r, or re"$%ce the f%u$t/

"%rts of #ehic$e of which )ode$ /e%r is )ore th%n % /e%r. K I!A!!*@* : I!A!!*@*

:%i$ ressure :egu$%tor, ec%use it is !*:GI+* I*.

ACCELERATION PEDAL POSITION SENSOR (APS)

CIRCUIT DIAGRAM


22/23



23/23
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air flow sensor

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