FixVault

Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check Ground Connections 
    1. Turn ignition switch OFF.
    2. Loosen and retighten three ground screws on the body. See Figure. Refer to GROUND INSPECTION .

    OK or NG

    1. OK: Go to 2.
    2. NG: Repair or replace ground connections.

  2. Check Intake Air Temperature Sensor 

    Refer to COMPONENT INSPECTION .

    OK or NG

    1. OK: Go to 3.
    2. 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 .

    1. Inspection end