1994 HONDA INTEGRA tow

EndPlay
NOTE; End play should be inspected before removing
crankshaft.
Push the crank firmly awav from the dial indicator, and
zero the dial against the end of the crank. Then pull the
crank firmly back toward the indicator; dial reading
should not exceed service limit.
Crankshaft End Play:
Standard (New): 0.10 - 0.35 mm
(0.04 - 0.01i| inl
S€rvic€ Limit 0.i15 mm (0.018 inl
. lf end play is excessive, inspect the thrust wash€rs
and thrust surface on the crankshaft. Replace pans as
necessary.
NOTE:
Thrust washer thickness is fixed and must not be
changed either by grinding or shimming.
Thrust washers are installed with grooved sides fac-
ing outward.
Crankshaft
lnspection
. Clean the crankshatt oil passages with pipe cleaners
or a suitable brush.
. Check the keyway and threads.
Alignment
Measure runout on all main journals to make sure the
crank is not bent.
The differ€nce between measurements on each jour-
nal must not be more than the service limit.
Crank3haft Total lndicatod Runout:
Bl8Bl engins:
Sisndod {Nsw): 0.03 mm {0.001 in) max.
Sorvice Limit: 0.05 mm {0.002 inl
818C1 engin€:
Standard {Nsw): 0.020 mm (0.0008 in} mar.
SGrvice Limits: 0.030 mm 10.0012 in)
OIAL INDICATORRotate tlvo completerevolutions.
Support with lathe-
7-12

PGM-FI System
Heated Oxygen Sensor lHO2Sl
ztRcot{lAELEiIE'{T
HEATER
- --.'!- - -__-
lrPl _l !l-
-fi-l: The Malfunction Indicator Lamp (MlL) indicates Diagnostic Troubls Code (DTC) 1: A problsm in
/? the Heated Oxygen Sonsor (HO2S| circuit.
The Heated Oxygen Sensor IHO2S) det€cts th6 oxygon contont in th6 exhaust gas and signals th6 ECM. In operation,
the ECM receiv€s th6 signals trom the sensor and vari€s the duration during which tu6l is iniocted. To stabilize thd sen-aor's output, tho sensor has 8n intarnal heater and the sensor olemant is coatod with a catslyst. The HO2S is installod
in TWC housing (B18Cl engine) or exhaust pipe B (Bl8Bl €ngine).
sEl{SORTERMII{ALS
:tz-t6l-/ --.- \
VOLTAGE (V}sTotcHtoltETncAIR-FUEL BANO
HEATEBTEBMIT{ALSRICH - AN. - LEAI{FUELRATIO- Th! mll h.. bo.n raportad on.- Wlth thr SCS rhon coon cto.connoctad lr.. p!9. 1t-341,cod. t l. Indlcltrd.
Oo th€ ECM Res€t Procodure {soopag€ 11-35).
Stan the 6ngine. Hold th6 engine
A3,qgq rpm with no load {A/T in
Lryl or lll position, M/T in nourralluntil the radiator lan com6s on.then lot it idle lor ot least on6minutg beforo road t€6tin0.
Connoct ths SCS short connoctorto th6 sorvic€ check connectorlsoo p.g6 1 1-34).
Rood t€st witlthe automatictransmission in L?l position (M/T:4th gear).Stsrting st l,600 rpm, acc6lorateu6ing wide open throttlo for atlesgt 5 seconds. Thsn dgcol€rstefor at lorst 5 s€conds with th€throttlo completoly closed.
Intarmittd[ t llurc, lyri.m b Of!l thla tlmc. Ch.ck lor poor con-nacdona o? loota wlrat |l C223(loc.trd at right $ock towo.l,Cr 13 (HO2S| lnd ECM.
Ooes the MIL blink and doos itindic6t6 cod6 1?
Go to plga and partonn tad fotcod. 43 lr.a p.go l1-501.
1 1-46

PGM-FI System
rj-t
--t-.
Fuel Supply System
-+-lt@t- -t 13 |- ' "- - --i--
T,-n The Maltunction Indicator Lamp (MlL) indicares Diagnostic Trouble Code (DTC) 43: A problem in
- L:!-i - the Heated Oxygen Sensor (HO2S) circuit. or a probtem in the Fuel Supply System.
NOTE:. Use DIGITAL MULTIMETER.. U6e 2 Volt rang6.
o oooooo oooooo I oo oooooooooooooooooooQoo ooo ooooo I oooo ooooooooooooooo
426
JUMPER WIRE
o ooooo oooo ooo I oo oooooo Isdtcllodsl ooo ooooooooo oooo ooo oo ooo I oooo ooooooooooooooo
D14 {+l
I
426 t-l vohrgo rhould rl.n.t
| 0.4-0.5 V wh.n th..- ignirioo .wilch i! firdt|rtrod o.r, Itd docr!6ato b.low O.1 V in L..th6n two minutaa.
- Tho MIL h.s boen reportod on.- With rhe SCS short con-noctor connocted (soo paga1l-34), codo 43 b indlcat.d,
From codr I troebl.-lhoorlng lprgo 1146).
ls the code 43 accompanied bythe MIL and poor driveability?Go to Fuol Supply .y.t.m (|ecpag6 1t-971.
Do the ECM Reset ftocedure lseepage 11-35).
Connect the SCS short connectorto the service check connector{see page 'l1-34).
Start the engine. Hold the engineat 3,00O rDm with no load {A/T in
@or@ position, M/T in neutral)until the radiator Ian comes on,then let it idle for at least onemanute,
Intonnitl.nt t llure, tydom lr OKat thi. tim. lto.t drlv. mly b.nocaararyr.Chock lor poo? connactlona otloots wiro at C223 lloc.t.d atrlghl lhock towo.]. Cl13lHO2Sland ECM,
Raise the engine speed to 3,000rpm and hold that throttle positiontor at least one minute.Do not vary the throttle positioneven if the rpm drops.
Ooes the MIL blink and does itindicate code 43?
Turn the ignition swilch OFF.
Connect the test harness betweenthe ECM and conneclors {seepage 1 1-371.
With the ignition switch OFF, waitfor at least two minutes.
lnstall a jumper wire on the testharness between A6 and A26.
11-50
1To page 1 1-5'l l

PGM-FI System
Manifold Absolute Pressure (MAP) Sensor
fxai - lfil1 The Malfunction Indicator Lamp (MlL) indicates Diagnostic Trouble Code (DTC) 3: An electrical
-:- -?- problem in the Manifold Absolute Pressure (MAPI Sensor circuit.
The MAP sbnsor converts manitold absolute pressure into electrical signals and inputs the ECM.
OUTPUTVOLTAGE
600 700
(in. Hsl GAUGEREADIIIO{mft Hg)
YEL/RED lBlSBl onginc)YEL^YHT lBlaCl .ngin.l | + I
{+l
SENSOR
1.5
- Tho MIL has boon roportod on.- Wirh tho SCS rhort connoctorconnectod lsoo pags 11-34),codo 3 b indicatsd.
Do the ECM Reset Procedure {soepage 11-35).
Intormittont tailuro, lystom ir Ol(at thls timo {tort drivo may bsnocessary).Chack to? Door connocllon oiloosa wiroa 6t C223 {locltod atright shock tow6rl, C'l 14 (MAP
sonaorl and ECM.
ls the MIL on and does it indi-cate code 3?
Turn the ignition switch OFF.
Disconnect the 3P connector tromthe MAP sensor,
Turn the ignition switch ON.
{To page 11-53)
11-52

PGM-FI System
TDC/CKP/CYP Sensor
_f'=l_ fi_l The Malfunction Indicator Lamp (MlL) indicates Diagnostic Trouble Code (DTC) 4: A problem int:- the Crankshaft Position (CKP) Sensor circuir.
l'6]- ftl - The Malfunction Indicator Lamp (MlL) indicates Diagnostic Trouble Code (DTC) 8: A problem in-i- the ToD Dead Center ITDC) Sensor circuit.
-flG]l- ft-] The Malfunction Indicator Lamp (MlL) indicates Diagnostic Trouble Code (DTC) 9: A problem in- , - the Cvlinder Position ICYP) Sensor circuit.
The CKP Sensor determines timing tor fuel injection and ignition of each cylinder and also detects engine speed. TheTDC Sensor determines ignition timing at start-up (cranking) and when crank angle is abnormal. The CYP Sensor detects
the position of No. 1 cylinder tor sequential fudl injection to each cylinder.
- \.--r-l - -__l_-
tPJ:;LlJ:lEl--;l ?,:
- Tho MIL hos beon roponod on.- With rho SCS short connoctorconneclod lsso pago I l-341,code 4, 8 and/or 9 ar6 in-dicated.
Do the ECM Reset procedure (seepage 11-35).
Intohittent failuro, syst€m is OKat thia tima {t6st drivo may benoceaSaayr.Chock for poo. connections orlooss wires at C222 (located atright shock towerl, C110(TOC/CKP/CYP Sonsorl and ECM.
ls the MiL on and does it in-dicate code 4, 8 and/or 9?
Turn the ignition switch OFF.
Disconnect the 8P connector fromthe TDC/CKP/CYP sensor.
{To page 1 1-57)
11-56

.:-\.-----ll@l--l t l- The Malfunction Indicator Lamp (MtL) indicatee Diagnostic Trouble Cod€ (DTC) 7: A problcm inrhe Thronle Position (TPl Sonsor circuit.The TP Sensor is a potsntiometer, lt is connected to the throttle valve shaft. A8 the throttlo position chan96, the throttlopositaon sensor varies the voltage signal to the ECM.
BBUSHHOLDER
PGM-FI System
Throttle Position (TPl Sensor
OUTPUT VOLTAGE IV)
BNUSH
RESISTOF
IXNOTTII
TERMIIIAL;0rr- of€ no
THNOTTIE
YEL/aLU l+l TP SEITSOR
I
a
t
t
Io.|o
RED/BLK {-I
cnn/BLu I - l
)ran1 )ril-Y- -?..
- Th. MIL h.. baln rlport d on.- With th. SCS thort conn.ciolconn.c-ted (rco pngc 11-341.codo 7 i. indlc.t d.
Do the ECM Reset hocedure (se€page l 'l-35).
l. ..mrtt nt fClur., lyrt m la OX.t thb dm. ll.at drlv. rn.y brncoaataryl.Chack lor poo? connactlo|ra otloora wlr.r !t C223 lloc.t d !tdgtn drod( tow..t, Cl15 ITP ...t-rorl, C419 (TCMI .nd ECM.
ls the MIL on and do€s itindicats codo 7?
Turn th€ ignition switch OFF.
Disconnect tho 3P connector lromth€ TP sensor.
Turn the ignition switch ON.
Meosu.o voltage betwoon YEL/BLU (i ) terminal and GRN/BLUI -, torminal.
Measurs voltagG betw66n YEUBLU (+l terminal and bodygiound.ls there approx. 5 V?
(To page 1 1-611
11-60
(To page 1 1-6'l )
,,,----

PGM-FI System
Intake Air Temperature (lAT) Sensor
----:-- z ---L /-h6l- I t0 l- The Malfunction Indicator Lamp (MlL) indicstes Diagnostic Trouble Cod6 (DTC) 1O: A problem in/ | / - the Intake Air TemDerature (lAT) Sensor circuit,
The IAT Sensor is a temperature dependant resistor (the.mistor). The resistanc€ of the thermistor d6creases 8s the
intake air temDeratura incroases as shown below.
)1611:till/ ---l- z ---i-\
THERMISTOR
RED/YELI + )
RESTSTAXCE tmt
Bl8Bl onglnc:
-a a2 aa roa .t7a 212 a t |l-20 o 20 rto ao I t6 rro t.cl
I TAKE AIR TEiiIPTFATURE
818C1 .nglnc:IAT SEI{SOR
11-62
wi.a sido
- Th! *llL hs b!!n Egortad on.- \|
rdr dra SCS rhon connrcto.conn.ct.d lt . psg. 1l-341.cod. 10 l. hdlclt.d.
Do the ECM Resot kocoduro {se€pago 11-35).
Turn the ignition switch ON.Into.n{tlont failuro. rys-r.m ir OK .t thi. iim.(toat drlvc m6y b6arooa!!1ryt.Ched( tor poor clnncc-lioiE or loote wlrar 6tC223 lloc.tod rightlhock toworl, C12O(lAT renrcrl and ECM.
ls the MIL on and doos itindicate code 10 ?
Turn the ignition swiich OFF.
Oisconnoct tho 2P connector fromthe IAT sensor.
Meosu.e resistonc€ between the2 torminals on the IAT aengor.
ls thero 0.4-4.0 k0?Rlobco tho IAT aonsor.
(To pago 1'l-63)

PGM-FI System
lgnition Output Signal
i16;11 :ffi1 The Malfunction Indicator Lamp (MlLl indic8tes Diagnostic Trouble Code (DTC) 15: A probl€m in'--=-- . -r- t the lgnition Output Signsl circuir.
I
NOTE| ll the onoine won't stan. itmay take 20 seconds ot cranking to5€t th€ COde.
D|STNIBUTOB
wir6 sido
- Th. MIL hsr b..n roport.d od.- Widr ths SCS .hon cohnecto.connoct€d {..o plgo 11-341,codg |5 i! indicatrd.
Do the ECM Reset ftocedure (seepage 'l'l-351.
Intarmltt nt hllur.. ryltam i. OK!t drlr dm. (t |l drlva mly bonaoaaalry).Chack tor Door cmnactiona orloo|. rYlrar !t C223 llocltld !trlghr .hoct tow.rl, Cl10 (lCMl.nd ECM.
ls th€ MIL on and do€s it indicatecode 15 ?
Turn the ignition swirch OFF.
Turn the ignition switch ON.
Measure voltage betwoon BLK/YEL (+) terminal snd bodygrouno.
R.p.ir op.n In BLK/YEL wlr. bo-ftvarn th. 2P conn.cior lnd ioni-tion rwitch.
ls the.e battory voltage ?
(To page 11-67)
11-66
re*,