service HONDA INTEGRA 1994 4.G Repair Manual

PGM-FI System
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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

The fusl supply system consists ot a fuel tank, in-tank
high presssure fu6l pump, PGM-FI main relay, fuel filter,
tuel pressure regulatot, fuel inioctors, fusl pulsation
damper and fuol delivery and return linss. This system
delivers pressure-regulatored fu6l to the fu6l injectors and
cuts the fuel delivory wh6n the engine is not running.
Fuel Supply System
System DescriptionFuel Pressure
a Do not smok6 while working on the fuol syst6m,
Keep open flames or spalks away tlom your work
aroa.
a 8e sure to raliavo fuol p.essur6 while th6 6n9in6 is off.
NOTE: Eefore disconnecting fuel pipes or hoses, release
pressure from the system by loosening the 6 mm se.-
vice bolt on top of the fuel filter.
1 . Disconnect the battery negative cable from the bat-
tery negative terminal.
NOTE: The LS and GS-R model radio may have a
coded theft protection circuit. Be sure to get the cus-
tomer's code number betore disconnecting the
batterv,
After service, reconnect Dowe. to the radio and turn
it on. When the word "CODE" is displayed. enter
the customer's s-digit code to restore radio
ooeration.
2. Remove the fuel fill cap.
3. Use a box end wrench on the 6 mm service bolt at
the fuel tilter, while holding the special banjo bolt
with another wrench.
4. Place a rag or shop towel over the 6 mm service bolt.
5. Slowly loosen the 6 mm service bolt one complete
turn.
NOTE:
a A fuel pressu.e gauge can be attached at the 6
mm seryice bolt hole.
a Alwavs replace the washer between the service
bolt and the special banio bolt. whenever the ser-
vice bolt is loosened.
a Replace all washers whenever the bolts are
removeo.
SERVICE BOLT15 N.m(1.5 kgf.m,11 rbr.ftl
FUEL FILTER
1 1-100

Insp6ction
1. Relieve fuel pressure (see page 11-1OO)
2. Remove the service bolt on the tueltilter while hold-
ing the banjo bolt with another wrench. Attach the
special tool
3. Siart the engine. * Measure the {uel pressur€ with
the engine idling and vacuum hose of the fuel pres-
sure regulator disconnected from the tuel pressure
regulator and pinched.
Pressure should b€;
818B1 engins:
275-324 kPa (2.8-3.3 kgl/cm2, 40-47 psil
818C1 ongine:
329-37a kPa (3.35-3.85 kgf/cmz, 48-55 pei)
4. Reconnect vacuum hose to the tuel plessure
regulator.
Prossuro should b€;
Bl8Bl ongino:
216-245 kPa (2.2-2.5 kgf/cm', 31 -36 psil
B18Cl on9in6:
27O-319 kPa 12.75-3.25 kgt/cm', 39-46 psi)
FUEL PRESSURE GAUGE07406 - OO4000 1
lf the engine will not stan, turn the ignition switch
on. wait for two seconds, turn it off, then back on
again and read the fuel pressure.
CLAMP
a lf the fuel pressure is not as specified, first check the
fuel pump (see page 1 l - 1 1O). lf the fuel pump is oK,
check the following:
- lf the fuel pressuro is higherthan specified, inspect for:
. Pinched or clogged tuel return hose or line.
. Faulty fuel pressure regulator (see page 11-106)
- It the fuel p.essu.e is lower than specitied, inspect fo.:
. Clogged fuel tilter.. Faulty fuel pressure regulator (see page '11-106).
. Leakage in the fuel line.
1 1-101

Filter
Fuel Supply System
Fuel
a Do not smoko while wo*ing on tusl system.
Keop open tlame away ftom your wotk area.a While replaclng th6 tusl liher, be caletul to koop a safodistanc6 betweon battery torminals and any tool3.
The Juel filter should b€ replaced every 4 years or 60,0O0miles (96,OOO km), whichever comes f irst. or wheneverthe fuel pressure drops below the specilied value
127 5 - 324 kPa, 2.8 - 3. 3 kgJ/cmr, 40-47 psi (Bl 8C 1engine: 329-378 kPa, 3.35-3.85 kgf/cmr, 48-55psi) with the fuel pressure regulator vacuum hose dis-
connectedl afte. making sure that the tuel pump and thefuel pressure regulator are OK.
1 , Disconnect the battery negative cable trom the bat-
tery negative terminal.
NOTE; The LS and GS-R model radio may have acoded theft protection circuit, Be sure to get the cus-
tomer's code number before disconnecting the
batterv.
After service, reconnect power to the tadio and turn
it on. When the word "CODE" is displaved, enter
the customer's 5-digit code to restore radio
operation.
2. Place a shop towel under and around the fueltilter.
3. Relieve fuel pressure (see page 11-100).
4. Remove the special banio bolt and the fuel feed pipe
from the fuel tilter.
Remove the fuel filter clamp and tuel Jilter.
When assembling, use new washers, as shown,
NOTE: Clean the llared joint ot high pressure hoses
thoroughly before reconnecting them,
1 1-108
SPECIALBOLT33 N.m(3.4 kgt.h,25 rbf.ft)
SERVICE BOLT15 N.m ll.5 kgt.m,1 I rbr.ftl
WASHERReplace
1O ttl.m(1.O kgf.m,7 tbt.ftl

Pressure Plate
RING GEAR HOLDER07LAB-PVOOl OO or07924-PD20003
Removal/lnspection
Check the diaphragm spring fingers for height us-
ing the special tools and a feeler gauge.
Standard lNew): 0.6 mm (0.02 inl Max.
Service Limit: O.8 mm {O.O3 in}
FEELER GAUGE
07NAF-PR3010007936-3710100
. lf the height is more than the service limit, replace
the pressure plate.
2. Install the special tools.
3. To prevent warping, unscrew the pressure plate
mounting bolts in a crisscross pattern in several
steps, then remove the pressure plate.
CLUTCH ALIGNMENT SHAFT07NAF-PR30100HANDLE07936-3710'l OO
PRESSURE PLATE
CLUTCH ALIGNMENT OISCOTJAF_PM7011A
4.Inspect the pressure plate surface
and burning.
Inspect the fingers of the diaphrag
at the release bearing contact ar
DIAPHRAGM SPRING
Inspect for warpage using a stru
er gauge.
NOTE: Measure across the prer
pornls.
Standard (Newl: 0.03 mm (0.0
Sorvice Limit:0.15 mm (0.0O6
STRAIGHT EOGE
FEELER GAUGE
PI
lf the warpage is more than
replace the pressure plate.
6.
I surface for wear, cracks,
diaphragm spring for wear
nracr area.
PRESSURE PLAT€
straight edge and feef
pressure plate at three
0.001 in) Max.
)O6 inl
12-7

Glutch Disc
'1.Remove the clutch disc and special tools.
Inspect the lining of the clutch disc Jor signs oJ slip-
ping o. oil. lf it is bu.ned black or oil soaked, replace
it.
Measure the depth trom the lining surface to the
rivets, on both sides.
Standard (Now): 1.3 mm (O.05 inl Min.
Se.vice Limit: O.2 mm {O.OO8 inl
CLUTCH ALIGNMEI{T SHAFT07NAF-PR30100HAt{DLE07936-3710 t0O
Measu.e the clutch disc thickness.
Standard {Now}: 8.4-9.1 mm (o.33*0.36 inl
Sarvica Limit: 6.0 mm (O.24 in)
It the rivet deDth is less than the service limit,
reolace the clutch disc.
lf the thickness is less than the service limit,
reolace the clutch disc,
CLUTCH DISCCLUTCH DISC
LINING SURFACE
CLUTCH DISC
Removal/lnspection
ctutch Disc I
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3. Measu.e the clutch disc thic

InspectionReplacement
Flywheel, Flywheel Bearing
Inspect the ring gear teeth for wear and damage.
Inspect the clutch disc mating surface on the
flywheel fo. wear, cracks, and burning.
Measure the flywheel runout using a dial indicator
through at least two full tu.ns. Push against the
Ilywheel each time you turn it to take up the crank-
shaft thrust washe. clearance.
NOTE; The runout can be measu.ed with engine in-
stalled.
Standard (ttlervl: O.O5 mm (O.002 inl Max.
Service Limit: 0.15 mm 10.006 inl
RING GEABFLYWHEEL
DIAL II{DICATOR
It the runout is more than the service limit, leplace
the flvwheel.
Turn the inner race of the flywheel bearing with your
finger. The bearing should turn smoothly and quiet-
ly, Check that the bearing outer race fits tightly in
the flvwheel.
FLYWHEELBEARING
It the race does not turn smoothly, quietly, or fit
tight in the flywheel, replace the flywheel bearing.
Install the special tool.
Remov€ the flywhe€l mounting bolts in a criascross
pattern in several steps 8s shown, then remove the
tlywheel.
MOUI{TII{G BOLTS
3. Remov€ the flywheel bsaring from th€ tlywheel.
(cont'd)
FLYWHEEL
12-9

- Transmission Oil
NOTE: Check the oil with the engine OFF, and the car on
level ground.
1. Remove the oil filler plug, then check the level and
Maintenance
condition of the oil.
OIL FILLER PLUG44 N.m lia.5 kgf.m,
ORAIN PLUG$ N.m 14.0 kgf.m.29 lbf.fr)
33 tbtftlProper Level
2. The oil level must be up to the filler hole. lf it is
below the hole. add oil until it runs out, then rein-
stall rhe oil filler plug.
3. lf the transmission oil is dirty, remove the drain
plug and drain the oil.
4. Reinstall the drain plug with a new washer, and
refillthe transmission oil to the proper level.
NOTE: The drain plug washer should be replaced at
every oil change.
5 Reinstall the oil filler plug with a new washer.
OilCapacity
2.2 ( ''2.3 US.qt,1.9 lmp.qt) at oil chang€.
2-3 I l2.1Us.ql,2.0lmp.qtl at oyerhaul.
Use only SAE 10 w - 30 or '10 W - 40, API Service
SF or SG grade.
OIL FILLER PLUGa4 N.m l{.5 kgf.m, 33 lbf.ftl
Back-up Light Switch
Replacement
NOTE: To check the back-up light switch,
1. Disconnect the connector, then rem(
light switch connector trom the conn
2. Remove the back-up light switch.
BACX-UP LIGHT SWITCH25 N.m 12.5 kg[.m, 18 lbf.ftl
lnstall the new washer and the back-
Check the transmission oil level (see
Replace.
/itch, see section 23.
remove the back-up
]onnector clamp.
-up light switch.
) page 13-3).
Replace.
13-3

Measure the clearance between the reverss idler
gear and the reverse change holder.
Standard: 0.5 - 1.1 mm (0.02 - 0.04 inl
Sorvico Limit: 1.8 mm (0.07 inl
4.lf the clearance is more than the service limit, mea-
sure the width ofthe reverse change hold6r.
St.ndrrd: 13.0 - 13.3 mm (0.512 - 0.52/t inl
lf the width is not within the standard, replace
the reverse change holder with a new one.
lf the width is within the standard, reolaco the
reversa idler gear with a new one.
REVERSE CHA'{GE HOLDER
REVERSE CHANGE HOTI'ER
Reverse Change Holder, Reverse ldler Gear
Clearance Inspection lcont'd)Removal
1. Removo the reverse change holder.
2. Remove the revorss idler g€ar, th€ rev6rs6 idlsrgear shaft, and the washor {B18Cl engine}.
REVERSE IDI.TRGEAF SHAFT
13-12
REVERSE CHAMiE HOII'ER

Change Holder Assembly
Clearance Inspection
Measure the clearance between the shift piece and
the shift arm holder.
Silndrd: 0.1 - 0.3 mm (0.004 - 0.012 inl
Scwic. Limit: 0.6 mm (0.02 inl
It the cloarance is more than the service limit, mea-
sure th€ width of the groove in the shift piece.
Stlndffd: 8.1 - 8.2 mm (0.319 - 0.323 inl
ll the width of the groove is not within the stan-
dard, replsce the shift piecs with a new one.
lf the width of the groove is within the standard.
roolace the shift arm holder with a new one.
SHIFT PIECE
SHIFT ARM HOI.I'ER
SHIFT PIECE
INTERLOCK
{
3. Measure the clearance between the select 8rm and
the interlock.
Standlrd: 0.05 - 0'25 (0.002 - 0.010 in)
Scrvica Limit 0.5 mm (0.02 in)
4. lf the clearance is more than the service limit, mea-
sure the width ot the interlock.
Stlndrrd: 9.9 - 10.0 mm (0.391t - 0.39a in)
lf the width is not within the standard. replace
the interlock with a new one.
lf the width is within the standard, replace the
select arm with a new one.(cont'd)
13-13