nissan Workshop Repair Guides

Nissan and Datsun Workshop Manuals

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Engine Control Module: Customer Interest
Fuel - Idle Speed Fluctuation

Classification:
EC91-001

Reference:
NTB91-022

Date:
March 7, 1991

240SX IDLE FLUCTUATION

APPLIED VEHICLE(S):
1989-90 240SX (13)

APPLIED VIN(S):
Federal

- JN1HS34P*LW 109709
- JN1HS36P*LW 153129

 Calif. 

- All 89-90

APPLIED DATE(S):
Federal

- June 8, 1990

Calif. 

- All 89-90

SERVICE INFORMATION
 
Some 1989-90 240SX vehicles produced before the applied date may experience idle fluctuation when coming to a stop (engine warm) or after a warm
restart.  If this occurs, perform the following service procedure.
 
SERVICE PROCEDURE
 
1.

Verify proper adjustment of the engine control components and idle speed according to Service Manual specifications and adjustment procedures.

 
2.

If these components are within specification and self diagnosis indicates code 55 (all clear) in mode III, replace the ECU with the new part listed
below.

 

PARTS INFORMATION

Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Technical Service Bulletins > Customer Interest: > 91-022 > Mar > 91 > Fuel - Idle Speed Fluctuation

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