1997 HONDA CIVIC Vacuum

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

System Description
Vacuum Connections {cont'd}
Dl6Y8 engine l'96 - 98 models):
To EVAPOBATIVE EMISSIONIEVAPI THREE WAY VALVE{'96 coupe, '97 coupe: all models.'97 sedan: KL model. 'g8-models)
EVAPORATIVE EMISSION (EVAPI
CONTROL CANISTERVENT SHUT VALVE{'96 coupe,'97 coupe: all models,'97 sedan: KL model. 'g8-modelsl
To EVAPORATIVE EMISSION{EVAP)TWO WAY VALVE
{'96 coupe,'97 coupe: all models,sed6n: KL model)
EVAPORATIVEEMISSION {EVAPIPUBGE CONTROLCANISTER
EVAPORATIVE EMISSION{EVAPI PUBGECONTROL CANISIERl'96 sadan, '97 sodan: XA,
FUEL PRESSUREREGULATORMANIFOLD ABSOLUTEPRESSURE (MAP) SENSOR
I
KC mod6l3l
EVAPORATIVEEMISSION {EVAPITo CRUISECONTROLDIAPHRAGM{with cruise control)
PURGE CONTROL SOLENOIDVALVE
FRONT OF VEHICLE
11-14

System Description
Vacuum Connections (cont'dl
D16Y7 engine ('96 models,'97 coupe: KA. Kc models, '97 sedan: KA, Kc, KL lDx) models,'97 hatchback: all modelsl:
EVAPORATIVEEMISSION (EVAPIPURGE CONTROL
FUELPRESSUREREGULATOR
To EVAPORATIVEEMISSION {EVAP}TWO WAY VALVE
MANIFOLD ABSOTUTEPRESSURE (MAP)
To CRUISECONTROLDIAPHRAGMlwith cruise
EVAPORATIVEEMISSION (EVAPI
PURGE CONTROLCANISTERFRONT OFVEHICLE
11-16

System Description
Vacuum Gonnections (cont'd)
B16A2 engine:
EVAPORATIVE EMISSION (EVAPICONTROL CANISTERVENT SHUT VALVE
To EVAPORATIVE EMISSION(EVAPI CONTROL CANISTERFILTER
EVAPORATIVEEMISSION {EVAPIPURGE CONTROLCANISTER
To EVAPOBATTVE EM|SS|ON(EVAPI
TWO WAY VALVE
EVAPORATIVEEMISSION IEVAPIPUBGE CONTROL SOLENOIDVALVE
2
VEHICLE
MANIFOI.D ABSOLUIEPRESSURE (MAPI SENSOR
FUEL PRESSUREREGULATOR
To CRUISECONTROLDIAPHRAGM(with cruise control)
1 1-18

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

System Description
Vacuum Connections (cont'd)
D16Y8 engine ('96 sedan, '97 sedan: KA, KC modelsl:
PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S.SENSOR SECONOARY HEATED OXYGEN SENSOR {SECONDARYHO2S, SENSOR 2lMANIFOLD ABSOLUTE PRESSUBE {MAPI SENSORENGINE COOLANT TEMPERATURE {ECTI SENSORINTAKE AIR TEMPERATUFE IIATI SENSORKNOCK SENSOR IKSICRANKSHAFT SPEED FLUCTUATION {CKFI SENSORIDLE AIR CONTROL IIACI VALVETHROTTLE EODY (T8)FUEL INJECTORFUEL FILTER
FUEL PRESSURE REGULATORFUEL PUMP {FPIFUEL TANKFUEL TANK EVAPORATIVE EMISSION IEVAP} VALVEAIR CLEANERRESONATORPOSITIVE CRANKCASE VENTILATION {PCV} VALVEEVAPORATIVE EMISSION IEVAP) PURGE CONTROLSOLENOID VALVEEVAPORATIVE EMISSION IEVAPI CONTROL CANISTEREVAFORATIVE EMISSION IEVAP} TWO WAY VALVETHREE WAY CATALYTIC CONVERTER (TWC'
{M/T}
i@l: F@i
HiiFl
(A/T)
I ENGINE I
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11-22