1998 HONDA CIVIC egr valve

Under-hood Emissions Control Label (lggg model)
Emission Group ldentification
Example:
50ST (50 Statosl:
THIS VEHICLE CONFORMS TO U,S. EPA AND STATE OFCALIFORNIA REGULATIONS APPLICABLE TO 1998MODEL YEAR NEW MOTOR VEHICLES,
ilgsT 149 States/Federal):
THIS VEHICLE CONFORMS TO U.S. EPA REGULATIONS
APPLICABLE TO 1998 MODEL YEAR NEW MOTOR VEHI.CLES.
CAL (California):
THIS VEHICLE CONFORMS TO U.S. EPA AND STATE OFCALIFORNIA REGULATIONS APPLICABLE TO 1998MODEL YEAR NEW PASSENGER CARS PROVIDEDTHAT THIS VEHICLE IS ONLY INTRODUCED INTO COM.MERCE FOR SALE IN THE STATE OF CALIFORNIA.
oR3.'@M|LES|3,@|frlw!cs
VEHICLE EI\4ISSION CONTROL INFORIVATIONrH SVEH CLE CONFOFMS IO U S EPA ANDSTA1E OF CALIFORNIA RE6ULAIIONS APPLICABLEIO 199A MODEL YEAR NEWTIEV PASSENGERCA8S PFOV OEO TI]AI 'HIS VEI CLE S OILYINIBODUCEDINTOCOMMEfiCE FOR SALE N TNC
CATALYSTIWCINO?S]2)EGR6F /OBO ] CEFT]F EDVALVE LASH1C0L0l EX 0 r51002mm
NO OTHTR AO.]USIMI\IS NI'TOEO
I]ONDA MOTOB CO.,ITDOE
1-38
ro
Engine and Evaporative Families
rf
Engine Family:v 0't.6 JL2
Model Year
W: 1998
Manufacturer
HNX
HNX: Honda
Type
V: Light Duty Vehicle/Passenger CarDisplacement
Sequence Characters
Evaporative Family:W HNX E 0065
HNX: Honda
Type
E:
Model Year
AAD
TW: 1998
Manufacturel
Canister Work C.pacity (glamsl
Sequence Characters
EVAP
LO

13. Remove the upper radiator hose' heater hose and
water bYPass hose
WATEREYPASSHOSEUPPERRADIATORHOSE
14.
HEATERHOSE
Remove the engine wire harness connectors and
wire harness clamps from the cylinder head and the
intake manifold.
o Four fuel injector connectors
. Engine coolant temperature (ECT) sensor con-
nector
a
a
a
ECT switch connector
ECT gauge sending unit connector
Throttle position sensor connector
Manitold absolute pressure (MAP) sensor con-
nector
Primary heated oxygen sensor (primary HO2S)
connector
Secondary heated oxygen sensor (secondary
HO2S) connector (D16Y7 engine)
Exhaust gas recirculation (EGR) valve lift sensor
connector (D16Y5 engine)
. VTEC solenoid valve connector (Dl6Y5, D16Y8
engrnes)
. VTEC pressure switch connector (D16Y5. D16Y8
engrnes,
. ldle air control (lAC) valve connector
15.Remove the spark plug caps and distributor from
the cylinder head.
Remove the uPPer bracket.
NOTE:
. Use a jack to support the engine before the
upper bracket is removed.
. Make sure to place a cushion between the oil
pan and the jack.
12 x 1.25 mm
74 N.m {7.5 kgf m.
sil lbl.ftl
UPPERBRACKET
'17. Remove the cylinder head cover'
CYLINDERHEAD COVER
(cont'd)
6-29

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

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

System Description
Vacuum Connections
D16Y5 engin6 ('96 - 97 modelsl:
To EVAPORATIVE EMISSION(EVAPI
TWO WAY VALVE
MANIFOLDABSOLUTEPRESSURE IMAPISENSOR
€VAPORATIVEEMISSION IEVAPIPURGE CONTROL SOLENOIDVALVE
EXHAUST GAS BECIRCULATION(EGR) VALVE end EXHAUST GASRECIRCULATION IEGR) VALVELIFT SENSOR
Qo
FRONT OF VEHICLE
To CRUISECONTROLDIAPHRAGM(wath cruise control)
Qo
O: Vacuum hose No.
11-12
EXHAUST GAS RECIRCULATION(EGR) CONTROL SOLENOID VALVE {CVT}\.'.-' \
I
I
)
FUEL PRESSURE REGULATOR

D16Y5 engine l'98 - 00 models):
To EVAPORATIVE EMISSIONtEVAPI THREE WAY VALVE {98 model)
To EVAPORATIVE EMISSIONIEVAP' CONTBOLCANISTERFILTER 1'99 - 00 modelsl
EVAPORATIVE EMISSION {EVAPICONTROL CANISTERVENT SHUT VALVE
To EVAPORATIVE EMISSION
l'99 - 00 modelsl {EVAP)TWO WAY VALVE
EXHAUST GAS RECIRCULATION(EGRI VALVE and EXHAUST GASRECIRCULATION IEGRI VALVELIFT SENSORtcwl
..,.-----.-(CWontylEXHAUST GAS RECIRCULATION
IEGR} CONTROL SOLENOIOVALVE ICVTI
,t'ffi,
ig
EVAPORATIVEEMISSION {EVAP)PURGE CONTROLCANISTER
MANIFOLDABSOLUTEPRESSURE {MAPISENSOR
EVAPORATIVEEMISSION {EVAP)Qo
To CRUISECONTROLDIAPHRAGM(with cruise control)PURGE CONTROL SOLENOIDVALVEFRONT OF VEHICLE
FUEL PRESSURE REGULATOR
o: Vacuum hose No.
(cont'd)
1 1-13
L

Dl6Y5 engine ('96 - 97 modelsl:
o
,6i
@
o@€)@o
@(il(i'
PRIMARY HEATED OXYGEN SENSOR {PRIMARY HO2S,
SENSOR 1'SECONDARY HEATED OXYGEN SENSOR (SECONDARY
HO2S. SENSOR 2l
MANIFOLD ABSOLUTE PRESSURE {MAP) SENSOR
ENGINE COOLANT TEMPERATURE (ECTI SENSOR
INTAKE AIR TEMPERATURE IIAT) SENSOR
KNOCK SENSOR (KS)
CRANKSHAFT SPEED FLUCTUATTON (CKF} SENSOR
IOLE AIR CONTROL (IAC} VALVE
THROTTLE BODY (TBI
FUEL INJECTORFUEL PULSATION DAMPER
FUEL FILTERFUEL PRESSURE REGULATORFUEL PUMP IFPIFUEL TANK
:li Vacuum hose No*: CVT only
FUEL TANK EVAPORATIVE EMISSTON {EVAP) VALVE
AIR CLEANERRESONATORPOSITIVE CRANKCASE VENTIL/ATION IPCVI VALVE
EXHAUST GAS RECIRCULATION IEGR) CONTROL
SOLENOID VALVEEXHAUST GAS RECIRCULATION (EGRI VALVE
EXHAUST GAS RECTRCULATION IEGRI VALVE LIFT
SENSOREVAPORATIVE EMISSION IEVAPI PURGE CONTROL
SOLENOID VALVEEVAPORATIVE EMISSION {EVAP} CONTROL CANISTER
EVAPORATIVE EMISSION {EVAP} TWO WAY VALVE
THREE WAY CATALYTIC CONVERTER (TWCI
{Do(D
@@
@@
@
@@@
(cont'd)
1 1-19
!'a

System Description
Vacuum Connections (cont'd)
D16Y5 engine ('98 modet):
-: Vacuum hose No,*: CW only
(9 POSITIVE CRANKCASE VENTILATION {PCV} VALVE?!J EXHAUST GAS BECIRCULATION (EGR}CONTROLSOLENOIO VALVE'1 ExHAUST GAs RECIRCULATIoN IEGRI VALVE22 EXHAUST GAS RECIRCULATION {EGR} VALVE LIFISENSOR€J EvApoRATtvE EMtsstoN {EvAp} puRGE coNTRoLSOLENOID VALVEq4 PURGE JOINT@ EVAPoRATIVE EMIssIoN {EVAP) coNTRoL CANISTER@ EVAPORATIVE EMISSION IEVAP} BYPASS SOLENOIDVALVE?? EVAPORATIVE EMISSION {EVAP) THREE WAY VALVEITII EVAPORATIVE EMISSION IEVAP} CONTROL CANISTERVENT SHUT VALVEO FUEL TANK PRESSURE sENsoRQlI EVAPORATIVE EMISSION {EVAP}TWO WAY VALVE8' THREE WAY CATALYTIC CONVERTER {TWCI
il) PRIMAFY HEATED OXYGEN SENSOR IPRIMARY HO2S.SENSOR 1)O SECoNDARY HEATEo oxYGEN sENsoR {sEcoNDARYHO2S. SENSOB 2)iq] MANIFOLD ABSOLUTE PRESSURE (MAPI SENSORO ENGINE COOLANT TEMPERATURE IECT) SENSOR5 INTAKE AIR TEMPERATURE {IATI SENSOR! KNOCK SENSOR tKSlO CRANKSHAFT SPEED FLUCTUATIoN {cKF) sENsoFO IDLE AIR coNTRoL {IAc) vALvE99 THROTTLE BODY ITBI@ FUEL INJECToRO FUEL PULSATION DAMPER@ FUEL F -TER@ FUEL PRESSURE REGULAToR[4 FUEL PUMP IFPI(9 FUEL TANK(D FUEL TANK EVAPoRATIVE EMIssIoN IEVAPI VALVEO' AIR CLEANER(D RESoNAToR
11-20