ACURA NSX 1997 Service Repair Manual

Troubleshooting
Troubleshootin g Procedure s (cont'd )
Sympto m Char t
Listed belo w ar e symptom s an d probabl e cause s fo r problem s tha t d o no t caus e th e Malfunctio n Indicato r Lam p (MIL ) t o
com e on .
I f th e MI L wa s reporte d on , g o t o pag e 11-38 .
Troubleshoo t eac h probabl e caus e in th e orde r liste d (fro m lef t t o right ) unti l th e sympto m is eliminated .
The probabl e caus e an d troubleshootin g pag e referenc e ca n b e foun d o n th e nex t page .
Othe r Probabl e Causes :
Engine wil l no t star t
— Compressio n
— Engin e locke d u p
— Timin g bel t
— Startin g syste m
— Overheatin g
— Batter y
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Probable Caus e Lis t (Fo r th e DT C chart , se e pag e 11-52 .)
Sectio n 2 3
11-5 8
See DTC chart
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Troubleshooting

Engine Control Module Terminal Arrangement

ECM CONNECTOR A (26P)

ECM CONNECTOR A (26P)
Wire side of female terminals

NOTE: Standard battery voltage is 12 V.ProCarManuals.com

ECM CONNECTOR B (16P)
Wire side of female terminals

NOTE: Standard battery voltage is 12 V.

*: M/T
ECM CONNECTOR B (16P)ProCarManuals.com

Troubleshooting
- Engin e Contro l Modul e Termina l Arrangemen t (cont'd )
ECM CONNECTO R C (12P )
Wir e sid e o f femal e terminal s
ECM CONNECTO R C (12P ) NOTE
: Standar d batter y voltag e i s 1 2 V .*:
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ECM CONNECTO R D (22P )
ECM CONNECTO R D (22P) Wir
e sid e o f femal e terminal s
NOTE : Standar d batter y voltag e is 1 2 V .
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Troubleshooting

Engine Control Module Terminal Arrangement (cont'd)

ECM CONNECTOR F (26P)
Wire side of female terminals

NOTE: Standard battery voltage is 12 V.

*: M/TProCarManuals.com

ECM CONNECTOR G (12P)
ECM CONNECTOR G (12P)

Wire side of female terminals

NOTE: Standard battery voltage is 12 V.ProCarManuals.com

Fuel Suppl y
Fuel Lin e
Chec k al l hos e clamp s an d retighte n i f necessary .
D o no t disconnect .
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Emission Control System

Evaporative Emission (EVAP) Controls

Description

The evaporative emission controls are designed to minimize the amount of fuel vapor escaping to the atmosphere. The

system consists of the following components:

A. Evaporative Emission (EVAP) Control Canister

An EVAP control canister is used for the temporary storage of fuel vapor until the fuel vapor can be purged from the

EVAP control canister into the engine and burned.

B. Vapor Purge Control System

EVAP control canister purging is accomplished by drawing fresh air through the EVAP control canister and into a port

on the throttle body. The purging vacuum is controlled by the EVAP purge control solenoid valve.

C. Fuel Tank Vapor Control System

When fuel vapor pressure in the fuel tank is higher than the set value of the EVAP two way valve, the valve opens and

regulates the flow of fuel vapor to the EVAP control canister.

D. Onboard Refueling Vapor Recovery (ORVR) System

During refueling, the ORVR (Onboard Refueling Vapor Recovery) vent shut valve opens with the pressure in the fuel

tank, and feeds the fuel vapor to the EVAP control canister.ProCarManuals.com