1998 HONDA INTEGRA light

Oil Pump
Check the housing-to-outer rotor radial cleatance.
Housing-to-Outer Rotor Radial Clearance:
Standald (New): O.10 -O.19 mm
{0.O04-O.O07 in)
Service Limit: 0.2O mm (O.OO8 inl
Inspect both rotors and pump housing tor scoring or
other damage. Replace parts if necessary.
Remove the old oil seal from the oil pump.
Gently tap in the new oil seal until the special tool
bottoms on the pump.
NOTE: The oil seal alone can be replaced without
removing the oil pump.
alllnspection/lnstallation (cont'd)
14.
15.
to.
OIL PUMP
8-12
24
L17.
'18.
19.
20.
Reassemble the oil pump, applying thread lock to the
pump housing screws.
Check that the oil pump turns freely.
Apply a light coat of oil to the seal lip.
Install the two dowel pins and new O-ring on the oil
pump.
Apply liquid gasket to the cylinder block mating sur-
face ol the oil pump.
NOTE:
. Use liquid gasket, Part No, 08718 - 0001 or 08718
- 0003.
a Check that the mating surlaces are clean and dry
betore applying liquid gasket.
a Apply liquid gasket evenly, in a narrow bead cen
tered on the mating surface.
a To prevent leakage of oil, apply liquid gasket to
the inner threads of the bolt holes.
a Do not installthe parts il 5 minutes or more have
elapsed since applying liquid gasket. Instead,
reapply liquid gasket atter removing the old
resrdue.
a After assembly, wait at least 30 minutes before
filling the engine with oil.
Install the oil pump on the cylinder block.
a Apply grease to the lip of the oil pump seal.
Then, install the oil pump onto the crankshaft.
When the pump is in place, clean any excess
grease oll the cranksfft-hd-chqck that the oil
seal lip is not disl6rted. ".\
lnstall the oal screen.
Installthe oil pan (see page 7 28).
22.
23.

J
Exhaust Pipe and Muffler
Replacement
NOTE: Use new gaskets and self-locking nuts when reassembling.
Bl8Bl engine:
HEAT SHIELOS6 x 1.0 mm9.8 N.m (1.0 kgf.m,7.2 lbf.tr)
{
HEAT SHIELD
SELF-LOCKING NUT10 x 1.25 mm33 N.m {3.4 kgt.m,25 rbr.ft)Replace.
24 N.n 12.417 rbf.tr)
BRACKET
8 x 1.25 mm16 N.m {1.6 kgf.m,12 tbf.fttReplace.
33 tbt.tr,
8 x 1.25 mm22 N.m 12.2 kgf.m. 16 lbt.ftlReplace.Tighten the flange nuts in steps,alternating side-to,side.
Replace.
6 x 'l.O mm9.8 N.m l'1.0 kgt.m, 7.2 tbf.ftl
{cont'd}
GASKETSReplace.
ir
li
it
SELF-LOCKING NUTS10 x 1.25 mm54 N.m {5.5 kgf.m,40 tbt.ft)Replace.
TWC Insp€ction:Make a visual check for plugging, meltang orcracking of the catalyst
EXHAUST
/
r cg
HEATEDOXYGEN SENSOR{PRIMARY XO25I/+4 N.m 14.5 kgf.m,
FLASHLIGHT
| ;"1- {' 'PI i ,"*,2ffi - .t"
i t rl= a+-41
I _ _*"
PIPE TIP
8 r 1.25 mm22 N.m 12.2 kgf.m, '16 tbf.ftlReplace.Tighten rhe bolts in steps,altelnating side-to-side.
SECONDARY HEATEDSENSORISECONDARY HO2S}/+4 N.rn 14.5 kgt'm,33 tbr.frl
9-7

System DescriPtion
Electrical Connections
FUELIN'ECTOHS
EVAP COIiTIBOL CANISTEAvE|rISHUT VAIVE
sotENoto vaLvE
lo FAOIAIOB FAN FELAY,CONOEI{SEh FAN FELAY
FUSESr-1) BATTERY {100 A)*
€) INTERIOF LIGHT {7.5 A}.
€) HORN STOP 120 A)'
o rcl (,$ A)*
o BACK UP IRADIO) 17.5 A)*
@ Fr €/M t15 Al'.'I NO. .I3 FUEL PUMP ISRS UNIN (15 A)
a,J No. 25 METER 17.5 Al
O No. 15 ALTERNATOR SP SENSOR {7.5 A}(0 No. 17 HEATER A/C R€LAY (7.5 A)(i) No. 31 STAnTEB SIGNAL (7.5 A)
*: in the under'hood fuse/relaY box

CAUTION:
. Puncturing th€ insulation on a wire can caus€ poot ot inlermitlent electrical connections.. Bring tho tester probe into contact with the terminalffom the tcrminal side of wire harness connectors in the engine
compartment. For female connestors, iust touch lightly with the tsster probe and do not insert the probe.
TESTER PROB€
(cont'd)
TERMINAL
11-35

ECM CONNECTOR D (16P}
Wire side of female terminals
ECM CONNECTOR D (16P1NOTE| Standard battery voltage is 12 V.
TerminalnumberWirecolorT6rminal nameDoscriptionSignal
1RED/BLKTPS (THROTTLE POSITIONSENSOR)Detects TP sensor s;gnal.With throttle fully open: about 4.5 VWith throttle fully closed: about 0.5 V
2REDAr'r'HTECT (ENGINE COOLANTTEMPERATUBE SENSOB}Detects ECT sensor signal.With ignition switch ON (ll)r about0.1 - 4.8 V (depending on engine coolanttemperalure)
3WHT//ELMAP {MANIFOLD AESOLUTEPBESSURE SENSOR)Detects MAP sensor signal.With ignition switch ON (ll)iabout 3 VAt idle: about 1.0 V {depending on enginespeeol
4YELA/VHTvccl{SENSOR VOLTAGE)Power source for MAP sensor,With ignition switch ON (ll): about 5 V
5GRNAVHTBKSW (BRAKE SWITCH)Detects brake switch signal.With brake pedal released: 0 VWith brake pedal depressed: batteryvoltage
6*!RED/BLUKS (KNOCK SENSOR}Detects KS signal.With engine running: pulses
lPHO2S (PRIMARY HEATEDOXYGEN GENSOR)Detects primary oxygen sensorsignal.With throttle fully opened, fully warmed upengine: above 0.6 VWith throttle quickly closed: below 0.4 V
8RED/VEL
IAT (INTAKE AIRTEMPERATURE SENSOR)Detects IAT sensor signal.With ignition switch ON {ll): about0.1 - 4.8 V (depending on intake airtemperature)
10YEL/BLUvcc2(SENSOB VOLTAGE)Provides sensor voltage,With ignition switch ON (ll): about 5 VWith ignition switch OFF: 0 V
1lGRN/8LUSG2 (SENSOR GROUND}Sensor ground.Less than 1.0 V at all times.
GFNA/VHT(SENSOR GROUND}Ground tor MAP sensor.Less than 1.0 V at all times.
OBN/BLUSHO2S GND (SECONDARY
HEATED OXYGEN SENSORGROUND)
Ground for secondary heatedoxygen sensor,Less than 1.0 V at alltimes.
148LU/REDSH02S (SECONDARY
HEATED OXYGEN SENSOR}Detects secondary oxygensensor srgnal.With throttle fully opened. fully warmed upengine: above 0,6 VWith throttle quickly closed: below 0.4 V
LT GRNPTANK (FUEL TANK PRESSURE SENSOR)Detects fueltank pressure sensor.With luel fill cap opened: about 2-5 V
GRN/RED
EL (ELOiDetects ELD signal.With parking lights turned on at idle: about2.5 -3.5 VWith low beam headlights turned on at idle:about 1.5 - 2.5 V*1:USA*2: 818C1 engine"3:A"/T*4: B18C'1, 818C5 engines
11-41

3.Fuel Cut-off Control
. Du ring dece leration with the th rottle va lve closed, cu rrent to the fuel injectors is cutoffto improvefuel economyat
speeds over following rpm:. B'1881 engine: 970 rpm {Canada model: 1.050 rpm). B18C1 engine:970 rpm {Canada model: 1.050 rpm). 818C5 engine: 1,300 rpm (Canada model: 1,400 rpm)
. Fuel cut-off action also takes place when engine speed exceeds 7,000 rpm (B'1881 engine), 8.100 rpm (818C1
engine) or 8,600 rpm (818C5 engine), regardless ol the position of the thronle valve, to protect the engine from
over-revving.
A,,/C ComDressor Clutch Relav
When the ECM receives a demand for cooling from the air conditioning system, it delays the compressor from being
energized, and enriches the mixture to assure smooth transition to the A,/C mode.
Evaporative Emission (EVAP) Purge Control Solenoid Valve
When the engine coolanl temperature is above '154'F (68'C) and the air conditioner on. the ECM controls the EVAPpurge control solenoid valve which controls vacuum to the EVAP purge control canister.
Intake Air Eypass (lAB) Control Solenoid Valve*a
When the engine rpm is below 5,750 rpm, rhe IAB control solenoid valve is activated by a signal from the ECM, intake
air flows through the long intake path, then high torque is delivered. At speeds higher than 5,750 rpm, the solenoidvalve is deactivated by the ECM, and intake air flows through the short intake path in order to reduce the resistance in
airflow.
Sell-diagnosis Function lMalfunction Indicator Lamp {MlL)lWhen an abnormality occurs in a signal from a sensor, the ECM supplies ground for the MIL and stores the code in
erasable memory. When the ignition is initially turned on, the ECM supplies ground for the N4lL tor two seconds to
check the MIL bulb condition.
Two Driving Cycle Detection Method
To prevent false indications, the Two Driving Cycle Detection Method is used for the HO2S, fuel metering-related, idle
control system, ECT sensor, TWC and EVAP control system and other self-diagnostic functions, When an abnormality
occurs, the ECM stores it in its memory. When the same abnormality recurs after the ignition switch is turned OFFand ON (ll)again, the ECM informs the driver by lighting the MlL.
However, to ease troubleshooting, this function is cancelled when you shon the service check connector. The MIL will
then blink immediately when an abnormality occurs.
4.
5.
6.
3.
4.
ECM Fail-safe/8ack.up F0nctions
1. Fail-sate Function
When an abnormality occurs in a signal from a sensor, the ECM ignores that signal and assumes a pre-programmed
value for that sensor that allows the enqine to continue to run.
2. Back-uo Function
When an abnormality occurs in the ECM itself, the fuel injectors are controlled by a back-up circuit independent of the
system in order to permit minimal driving.
11-49

I
I
It:
PGM-FI System
Engine Control Module {ECMI
,i
I
{
ili
NOTE: lf this svmotom is intermittent, check for a loose fuse No. 25 METER (7.5A) in the under_
dash fuse/relay box, a ooor connection at ECM terminal A18, or an intermittent open in the
GRN/ORN wire between the ECM (A18) and the gauge assembly.
Wire side of female terminals
I
The Mellunction Indicator Lamp(MlLl never com€3 on leven foltwo secondsl alter ignition islurn6d ON lll).
Turn the ignition switch ON (lli.
- Repair short or open in th€wire betwe€n No. 25 METER{7.5 A}fuse and gauge assem-bty.- ReDlaco No.25 METER 17.5 A)fuse.
ls the low oil pressure light on?
Try to start the engine,
Check for an open in ih6 wires
IPG lines):1. Turnthe ignition switch ON (ll).
2. Measure voltage betweenbody ground and ECM connec-tor terminals A10 and A23 indi-vidually.
Chock for an open in the wire orbulb:1. Turn the ignition sw;tch OFF.2. Connectthe ECM connector terminal 418 to body ground with
3. Turn the ignition switch ON (ll).
Repair open in the wire(slbetween ECM and G101 (located
at thermostat housingl that hadmore than 1.0 V.
ls there less than 1.0 V?
Substitute . known-good ECMand .echeck, lf symptom/indica-tion goes away, replace the origi-nalECM.
- R€pair open in the wiresb€tweon ECM {A18land gaug€
ess€mbly.- Replace the MIL bulb.
ls the MIL on?
Substitute a known-9ood ECMand rech6ck. It symptom/indica-tion goes away, repbce the origi-nal ECM.
ECM CONNECTOR A {32P)
15 16 17 18 19
r 2 3 al 15 Ga910 11
12 ,, t5 16 1tt920/22 23 2a
25 26 211184tt-MILJUMPER(GRN/ORN) I WIRE

PGM.FISystem
Gontrol Module (ECMI (cont'dlEngine
\
L
(From page 11-51)
Choc* tol s short in tho wir6 lMlLlino):1. Turn the ignition switch OFF.2. Disconn€ct the ECM conn6c-tor A (32P).
3. Turn the ignition switch ON (ll).
Repair 3hon to body ground in
rhe wire bstw.on tho ECM (A181
and MlL.
Substituto s known-good ECMend rechock. H 3ymptom/indica-tion goes awry, replacc tho origi-nelECM,
{From page 11-51)
Inspect Fl E/M (15 A) fuse in theunder-hood Iuse/relay box.
- Ropsir short in tha wircbotw.on Fl E/M {'15 Al tu3c'rnd PGM-FI m.in t.lry.- Rool.c. Fl E/M l15A)tu!€.
Inspect No. 13 FUEL PUMP (SRS
UNIT) ('l5A) fuse in the undeFdash fuse/relay box.
- Reo.ir sholt in th. wirobotw..n No. 13 FUEL PUMP
{SRs UNIT) (15 Al fur..ndFGM-FI m.in rclay.- Repl.co No. 13 FUEL PUMP(SRS UNIT) {15 Alturr.
Ch6ck for . shon in a son3or1. Turn the ignition switch ON (ll).
2. Disconnect the 3P connectorfrom oach sensor one at time:. MAP sensor. TP sensor. Fueltank pressure sensor
Rapl.cc tha 3onaor thrt cauaadihe light to 9o out.Does the MIL go OFF?
1-52
(To page 11-53)