Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Check Ground Connections
1. Turn ignition switch OFF.
2. Loosen and retighten two ground screws. Refer to GROUND INSPECTION .
1. OK or NG
2. OK: GO TO 2.
3. NG: Repair or replace ground connections.
Check Intake Air Temperature Sensor
Refer to 2.
1. OK or NG
2. OK: GO TO 3.
3. NG: Replace mass air flow sensor (with intake air temperature sensor).
Check Intermittent Incident
Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .
1. : INSPECTION END