1998 ACURA INTEGRA check engine

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

lllustrated Index
!$!!@ sv"t"m is under high plessure when the
engine is hot, To avoid dangei of releasing scalding
engine coolant, remove the cap only when engine is cool.
Total Cooling System Capacity {lncluding heater and
leservoir)
Bl8Bl engine:
MIT: 6.4 l. {6.8 US qt, 5.6 lmp qt)
Ant 6.7 t (7.1 US qt,5.9 lmp qt)
B18C1, 818C5 engines:
Mfi:6.7 t (7.1 US qt, 5.9 lmp qt)
CAUTION: lf any engine cgolant spills on painted por-
tions of the body, rinse it off immediately.
NOTE:
a Check all cooling system hoses for damage, leaks or
deterioration and replace il necessary.
a Check all hose clamps and retighten if necessary.
a Use new O-rings when reassembling.
RADIATOREngine coolant refilling and bleeding,page 10-6Leak test, page 10 8Inspecl soldered joints andseams for leaks,RAOIATOR CAPPressure test, page 10-8
UPPERRADIA
rl
]
CONDENSERFAN SHROUD{s€o section 22)
6 x 1.0 mm7 N.m {0.7 kgl.m, 5 lbf'ftl
5x0.8mm4.4 N.m (0.45 kgl.m,3.3 tbt.ft)
Blow out dirt from betweencore fins with compressed air.lf insects, etc., are cloggingradiator, wash them o{f withlow paessure water,
TOR HOSE
\*
\sffi((
@)
ATF COOLERHOSES181881 €ngin
S!g
R
U
COOLANTRESERVOIR
M/T: Manual lransmissionA/T: Automatic transmissionATF: Automatic t.ansmission fluid
FAN SHROUD
10-2

8.Mix the recommended antifreeze with an equal
amount of water in a clean container.
NOTE:
a Use only genuine Honda antifreeze/coolant.
a For best corrosion protection, the coolant concen-
tration must be maintained year-round at 500,6
minimum. Coolant concentrations less than 507o
may not provide sufficient protection against cor,
rosion or freezing.
a Coolant concentrations greater than 60% will im-
pair cooling efliciency and are not recommended.
CAUTION:
a Do not mix different brands of anti-lrcezel
coolants.
a Do not use additional rust inhibitots or anti-tustproducts; they may not be compatible with the
coolant.
Engine Coolant Refill Capacity [including reservoir
{0.6 { (0.6 US qt, 0.5 lmp qr)ll:
81881 engine:
Ml7:1-1t {/t.6 US qt. 3.9 lmp qtl
818B1, 818C1 engin€s:
AlTt 1.7 | 15.0 US qt, 4.1 lmp qt)
818C1, B18C5 engines:
MlTt 1.7 t 15.0 US $, 4.1 lmp qtl
FILLER NECK
9.Pour coolant into the radiator up to the base of the
tiller neck.
10. Startthe engine and let jt run until itwarmsup(the
radiator fan comes on at least twice).
1 1 . Turn olf the engine. Check the level in the radiator,
add coolant if needed.
'12. Put the radiator cap on tightly, then run the engine
again and check for leaks.
10-7

Cap Testing
1.Remove the radiator cap, wet its seal with engine
coolant, then install it on the pressure tester.
Apply a pressure of:
93 123 kPa(0.95 1.25 kgf/cm', 13.5 17.8 psi)
Check for a drop in pressure.
2.
3.
AOAPTOR(for small cap)
PRESSURE TESTER
Radiator
Pressure Testing
1. Wait until the engine is cool, then carefully remove
the radiator cap and fill the radiator with engine
coolant to the top ot the filler neck.
2. Attach the pressure tester to the radiator and apply
a pressure of:
93 123 kPa(O.95- 1.25 kgf/cmr, 13.5-'17.8 psi)
3. Inspect lor engine coolant leaks and a drop inpressure.
4. Remove the tester and reinstall the radiator cap.
NOTE:
a Check for engine oil in the engine coolant and/orcoolant in the engine oil.a Check for ATF in the engine coolant and/orcoolant in the ATF {A/T}.
\
PRESSURE TESTES
AOAPTOR{for small cap)

Inspection
Remove the timing belt (81881 engine: see page 6-10, B'l8Cl,818C5 engines: see page 6-48).
Tu.n the water pump pulley counterclockwise.Check that it turn freely.
Check for sign6 of seal leakage.
NOTE: A small amount of "weeping" trom thebleed hole is normal.
BLEED HOLE
Remove the timing belt (81881 engine: see page 6-
10,818C1, Bl8C5 engines: see page 6-48).
Remove the camshaft pulleys and the back cover(B'1881 engine: see page 6-20, 818C1, 818C5
engines: see page 6-60).
Remove the water pump by removing flve bolts.
NOTE: Inspect, repair and clean the O-ring groove
and mating surface with the cylinder block,
Replacement
6 x 1.0 mm12 N.m 11.2 kgt.m,8.7 tbf.tt)
4. Install the water pump in the reverse order ofremoval.
a Keep the O-ring in position when installing.a Clean the spilled engine coolant.
BLEED HOL€
10-1 1

Gomponent Locations
Index (cont'dl
THROTTLE BODY {TBIInspection, page 1 1'132
Disassembly, page 1 1-133
THEOTTLE CABLEInspection/Adjustment, pages 11-130, 131
lnstallation, Pages 11 130' 131AIR CLEANER IACL)Replacement, Page 11 129
RESONATOR
INTAKEAIRBYPASS {IAB)CONTROLDIAPHRAGM(818C1 engine onlylTroubleshooting,page 11-135
i-)
i--- / /
i rl
l'-' i
INTAIR
POSITIVE CRANKCASEVENTILATION (PCV) VALVEInspection, page 11'140
BYPASS IIAB}CONTROLSOLENOIDVALVE (818C1 ongine only)
Troubleshootrng,page 11-135
PGM-FIMAIN RELAYRelayTesting, Page 11 124
Troubleshooting, Page 1 1-1 25
L
ENGINE CONTROL MODULE IECM}
Tro!bleshooting, Page 11 50
SERVICE CHECK CONNECTOR {2P)
Troubleshooting Procedures, page 1 1'32
DATA LINK
1 1-6
\'

B18C1 engine:
EVAPORATIVEEMtSStONIEVAPIPURGE CONTROLSOLENOID VALVEMANIFOLD ABSOLUTEPRESSURE {MAP) SENSOBFRONT OFVEHICLE
INTAKEAIREYPASS IIAB)VACUUMTANK
To EVAPORATIVEEMISSION {EVAP)THREEWAY VALVE
O: Vacuum hose No,
EVAPORATIVE EMISSIONIEVAPI CONTROL CANISTER
EVAPORATIVEEMtSSION{EVAP}TWO WAYVALVE
INTAKEBYPASS (IABI
CONTROL SOLENOID VALVE
INTAKE AIRBYPASS {IABICHECK VALVE
{cont'd)
1 1-9

System Description
Vacuum Connections (cont'dl
Bl8Cl engine:
rl
llj
lli;r
Fil
ryl
xr
flti
li
tl
I
lr; I
,l'{9^h;'L-r
'-1] PRIMARY HEATED OXYGEN SENSOR IPRIMARY HO2SItsENsoR 1l
O SECONDARY HEATED OXYGEN SENSOR (SECONDARY
HO2SI ISENSOR 2)
.3) MANIFOLD ABSOLUTE PRESSUBE {MAPI SENSORii ENGINE COOLANT TEMPERATURE (ECT} SENSORii INTAKE AIR TEMPERATURE IIAT) SENSORi6-- CRANKSHAFT SPEEO FLUCTUATION ICKF} SENSOR
a7) KNocK sENsoR lKslO IDLE AIR CONTROL IIAC) VALVE
i' FUEL INJECTOR
@ FUEL FILTER
O FUEL PRESSURE REGULATOR
[4 FUEL PUMP {FP}@ FUEL TANKI.13 FUEL TANK EVAPORATIVE EMISSION (EVAP) VALVE
.19 FUEL PULSATION DAMPER{!9 AIR CLEANER
O RESONATOR
I t-az
I: Vacuum hose No.
iio INTAKE AIR BYPASS IIAE) CONTROL DIAPHRAGM VALVE(!9) INTAKE AIR BYPASS {IABI CONTROL SOLENOID VALVE
6I INTAKE AIR BYPASS (IAB) VACUUM TANK
CI INTAKE AIR BYPASS {IABI CHECK VALVE
€9 THREE WAY CATALYTIC CONVEFTER (TWC)
2jI POSITIVE CRANKCASE VENTILATION (PCV} VALVE
€! EVAPORATIVE EMISSION (EVAPI CONTROL CANISTER
?9 EVAPORATIVE EMISSION {€VAPI PURGE CONTNOLSOLENOID VALVE0d EVAPORATIVE EMISSION (EVAP}TWO WAY VALVE
iii) EVAPORANVE EMISSION {EVAP) BYPASS SOLENOID VALVE,3 EVAPORAIVE EMTSSTON {EVAP} CONTROL CANISTER VENTSHUT VALVE?9 FUEL TANK PRESSUR€ SENSORi3O] EVAPORATIVE EMISSION IEVAP} THREE WAY VALVE