1998 HONDA CIVIC Manifold

Intake Manifold
Replacement
NOTE: Use new O-rings and gaskets when reassemblinq.
CAUTION:
. Check tor folds or scratchos on the surface of tbe gasket.. Replace with a now gasket if damaged.
D16Y7 engine:
8 x 1.25 mm22 N.m 12.2 kgtm, 16 tbtftl
INTAKE MANIFOLDReplace if cracked orif mating surfaces aredamaged.
8 x 1.25 mm23 N.m {2,3 kgt m.17 rbf.ftl
INTAKE MANIFOLDBRACKET
8 x 1.25 mm24 N.m {2.4 kgf.m, 17 tbf.ftl
9-2

D16Y5 engine:
6x1.0mm12 N'm (1.2 kgl.m,8.? lbf'ft)
EGR CHAMBER
INIAKE MANIFOLDReplace if cracked orif mating surfaces are8 x 1.25 mm21 N m (2.1 kgf.m,15 tbtft)damageo,
INTAKE AIB CONTROL(IAC) VALVE (M/TI
8 x'1,25 mm22 N.m (2.2 kst m, 16lblftl
8 r 1.25 mm2a N.m (2.4 kgt m,17 rbt.ft)
EXHAUST GASRECIRCULATION(EGRIVALVE
8 x 1,25 mm22 N.n 12.2 kol'm,16 tbftr)
INTAKE MANIFOLDBRACKET
8 x 1.25 mm23 N.m 12.3 kgf'm,17 tbt fr)
(cont'd)I
9-3

lntake Manifold
Replacement (cont'dl
NOTE: Use new O,rings and gaskets when reassembling.
CAUTION:
. Check lor folds or scratches on the surface of the gasket.. Replace with a new gasket il damaged.
D16Y8 engine:
INTAKE MANIFOLDReplace if cracked orif mating surfaces areoamageo,
INTAKE AIR CONTROL{ract vAt_vE {M/Tl
GASKETReplace.
8 x 1.25 mm24 N.m {2.{ kgtm.17 tbtftt
THROTTLEBODY
8 x 1.25 mm22 N.rn |.2.2 kgl.rn,16 tbtft)INTAKE MANIFOLDBRACKET
9-4

816A2 engine:
INTAKE MANIFOLDReplace if cracked orif mating surfaces areoamageo,
8 x 1.25 mm22 N.rA 12.2 kgl.trr,16 tbtftt
o
t_-lUH
E
INTAKE AIR CONTROLIIACI VALVE
8 x 1.25 mm24 N.m 12.4 kgf.m,17 tbtftl
8 x 1.25 mm23 N.m {2.3 kg{.m,17 tbt.ftl
Al N-m 12.2 kgt.m,16 tbt.ftlMANIFOLDBRACKET
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M\G
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9-5

Exhaust Manifold
Replacement
NOTE: Use new gaskets and self-locking nuts when reassembling.
CAUTION:
. Check for folds or scratch€s on the surface of the gasket.
. Replace with a new gasket it damaged.
D16Y5. D16Y7 engines:
I x 1.25 mm24 N.m {2.4 kgt.m, 17 tbtft}
MANIFOLDBRACKET
PRIMARY HEATEDOXYGEN SENSORIPRIMAFY HO2SI44 N.m {4.5 kgf m, 33 lbtft)Replacement, page 9-12
GASKETReplace.
I x 1.25 mm31 N.m (3.2 kgf.m,23 tbf.ft)Beplace.
WAY CATALYTICCONVERTER {TWCIlnspection, page 9'12
6x1.0mm11 N.m {1.1 kgt m,8 lbf.ft)
SECONDARY HEATEDOXYGEN SENSOR(SECONDARY HO2S}44 N.m 14.5 kgf.m,33 lbf.ft)Replacement, page 9-13
9-6

D15Y8 engine:
8 x 1.25 mm2,1 N.m (2.a kgf'm,
17 tbf.ftl
GASKETReplace.
8 x 1.25 mm31 N.m 13.2 kgf'm,23 lbf.ftlReplace.
PRIMARY HO2S44 N.m (4.5 kgf.m, 33 lbtft)Replacement, page 9-13
EXHAUST MANIFOLDBRACKET10 x 1.25 rnm
(cont'd)
9-7
/r4 N.m {4.5 kgf.m, 33 lbf.ft)
v

Exhaust Manifold
Replacement (cont'dl
NOTE: Use new gaskets and self-locking nuts when reassembljng.
CAUTION:
. Check for folds or scratches on the surface ot the gask€t.
. R€place with a new gaskot if damagod,
B16A2 engine:
GASKETReplace.
10 x 1.25 mm44 N.m {4.4 kgt.m,33 tbl.ft)SELF.LOCKING NUT8 x 1 .25 mm31 N.m (3.2 kg{.m, 23 lbf.ft)Replace-EXHAUST MANIFOLDBRACKET
10 x 1.25 mm4{ N.m (4.5 kgf.m. 33 tbt.fil
9-8

Gomponent Locations
L
lndex
D16Y5 engine:
{IATISENSORTroubleshooting,
ELECTRICAL LOADDETECTOR IELD) (USA mod6l)Troubleshooting, page 11 179
THROTTLE POSITION ITP)SENSORTroubleshooting, page 1 1-132
MANIFOLD ABSOLUTEPRESSURE IMAPI SENSORTroubleshooting, page 1'l-115
EXHAUST GAS RECIRCULATION
IEGRI VALVE and EXHAUST GAS
RECIRCULATION IEGRI VALVE
LIFT SENSORTroubleshooting, page'l 1-254
INTAKE AIR TEMPERATUR€
IDLE AIR CONTROL (IAC) VALVE
{M/T)Troubleshooting, page 1 1-194
EXHAUST GAS RECIRCULATION{EGRI CONTROL SOLENOIDVALVE ICW)Troubleshooting. page 1 1-254
EVAPORATIVE EMISSIONIEVAPI PUNGE CONTROLSOLENOID VALVETroubf eshooting, Page 1 1'21 1, 243
CRANKSHAFTPOS|TTON/TOP DEAD CENTER/CYLINDERPOS|T|ON
POWER STEERING PRESSURE(PSP) SWITCH (USAI
Troubleshooting, Page 1 1-212
KNoCK SENSoR (Ks)
(cwl
Troubleshooting, Page 1 1'170ICKP/TDC/CYP} SENSOR(Built into the distributor)Troubleshooting, Page 1 1'172
VEHICLE SPEED SENSORTroubleshooting, Page 1 1-176
FLUCTUATION (CKF} SENSOR
Troubleshooting, Page 1 1 -183
ENGINE COOLANTTEMPERATUREIECT) SENSORTroubleshooting, Page 11 128
IDT.ECONTROL IIACI VALVE
{cw)Troubleshooting, Page 11 198
WAY CATALYTICCONVERTER ITWCITroubleshooting, Page 1 1-252PRIMARY TIEATEDSENSOR {PNIMARY HO2SI
tsENsoR 1t {M/TlTroubleshooting, Page'l 1-146
PRIMARY HEATED OXYGENSENSOR (PRIMARY HO2SI
tsENsoR 1l {cw}Troubleshooting, Page 1 1-139
SECONDARY HEATED OXYGENSENSOR {SECONDARY HO2S){SENSOR 2)Troubleshooting, page 11 153
(cont'd)
1 1-3