1991 ACURA NSX Service Repair Manual

System Descriptio n
Vacuum Connection s
CONTROLBOXpag e 11- 8EVA P PURG E FLO W
SWITC H
INTAKEAIRBYPAS S(IAB)DIAPHRAG M
FUEL PRESSUR E
REGULATO R EVA
P
PURG E CONTRO L
DIAPHRAG M VALV E
EVA P CONTRO L
CANISTE R
FRON T O F
VEHICL E
EG
R VALV E
LIF T SENSO RT
o EVA P TWO-WA Y
VALVE
EGR VALV E
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System Descriptio n
Vacuum Connection s (cont'd )
Control Bo x
EVAPORATIV E EMISSIO N
(EVAP ) PURG E CONTRO L SOLENOI D VALVE
EXHAUS T GA S RECIRCULATIO N
(EGR ) CONTRO L SOLENOI D VALVE EXHAUS
T GA S RECIRCULATIO N (EGR )
VACUU M CONTRO L VALV E
MANIFOL D ABSOLUT E
PRESSUR E (MAP ) SENSO R
INTAK E AI R BYPAS S
(IAB ) CONTRO L SOLENOI D
VALVETroubleshooting ,
pag e 11-15 5
INTAK E AI R BYPAS S (IAB ) CHEC K VALV E
INTAKE AI R BYPAS S (IAB ) VACUU M TAN K
For Troubleshooting of DTC related components, see chart on page 11-52.
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Vacuum hos e No .
FRON T PRIMAR Y HEATE D OXYGE N SENSO R (HO2S )
(BAN K 2 , SENSO R 1 )
REA R PRIMAR Y HEATE D OXYGE N SENSO R (HO2S )
(BAN K 1 , SENSO R 1 )
FRON T SECONDAR Y HEATE D OXYGE N SENSO R (HO2S )
(BAN K 2 , SENSO R 2 )
REA R SECONDAR Y HEATE D OXYGE N SENSO R (HO2S )(BANK 1. SENSO R 2)MANIFOL D ABSOLUT E PRESSUR E (MAP ) SENSO R
ENGIN E COOLAN T TEMPERATUR E (ECT ) SENSO R
INTAK E AI R TEMPERATUR E (IAT ) SENSO R
FRON T KNOC K SENSO R (KS2 )
REA R KNOC K SENSO R (KS1 )
AI R CLEANE R (ACL )
FUE L INJECTO R
FUE L PRESSUR E REGULATO R
FUE L FILTE R
FUE L PUM P (FP )
FUEL TAN KFUEL TAN K EVAPORATIV E EMISSIO N (EVAP ) VALV E
INTAK E AI R BYPAS S (IAB ) CHEC K VALV E INTAK
E AI R BYPAS S (IAB ) VACUU M TAN K
INTAK E AI R BYPAS S (IAB ) CONTRO L SOLENOI D VALV E
INTAK E AI R BYPAS S (IAB ) CONTRO L DIAPHRAG M
FRON T THRE E WA Y CATALYTI C CONVERTE R (TWC )
REA R THRE E WA Y CATALYTI C CONVERTE R (TWC )
POSITIV E CRANKCAS E VENTILATIO N (PCV ) VALV E
EXHAUS T GA S RECIRCULATIO N (EGR ) VALV E
EXHAUS T GA S RECIRCULATIO N (EGR ) VALV E LIF T SEN -
SOREXHAUS T GA S RECIRCULATIO N (EGR ) VACUU M CONTRO LVALVEEXHAUS T GA S RECIRCULATIO N (EGR ) CONTRO L
SOLENOI D VALV E
EVAPORATIV E EMISSIO N (EVAP ) CONTRO L CANISTE R
EVAPORATIV E EMISSIO N (EVAP ) PURG E CONTRO L
SOLENOI D VALV E
EVAPORATIV E EMISSIO N (EVAP ) PURG E CONTRO L
DIAPHRAG M VALV E
EVAPORATIV E EMISSIO N (EVAP ) PURG E FLO W SWITC H
EVAPORATIV E EMISSIO N (EVAP ) TW O WA Y VALV E
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System Descriptions

Electrical ConnectionsProCarManuals.com

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System Descriptions

Electrical Connections

TERMINAL LOCATIONSProCarManuals.com

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(To page 11-15)
System Description
Electrical ConnectionsProCarManuals.com