Diagnostic Procedure

1. Turn ignition switch OFF.
2. Loosen and retighten ground three screws on the body.
   Fig 1: Locating Ground Screws

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

   Refer to Ground Inspection  .

OK or NG 

1. OK >> GO TO  2.
2. NG >> Repair or replace ground connections.

Refer to Component Inspection  .

OK or NG 

1. OK >> GO TO  3.
2. NG >> Replace mass air flow sensor (with intake air temperature sensor).

Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT  .

1. >> INSPECTION END