Diagnostic Procedure

1. CHECK GROUND CONNECTIONS 
   1. Turn ignition switch OFF.
   2. Loosen and retighten ground screw on the body.

      Refer to "GROUND INSPECTION ".

      Fig 1: Identifying E24, E15 Body Ground And F9, F16 Engine Ground Screws

      Courtesy of NISSAN MOTOR CO., U.S.A.

   OK or NG 

   OK >> GO TO 2.

   NG >> Repair or replace ground connections.

2. CHECK INTAKE AIR TEMPERATURE SENSOR 

   Refer to "COMPONENT INSPECTION ".

   OK or NG 

   OK >> GO TO 3.

   NG >> Replace mass air flow sensor (with intake air temperature sensor).

3. CHECK INTERMITTENT INCIDENT 

Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

Refer to "WIRING DIAGRAM ".

>> INSPECTION END