Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.

CHECK INTAKE AIR LEAK
1. Start engine and let it idle.
2. Listen for an intake air leak after the mass air flow sensor.
  Is intake air leak detected?
  
  YES: Discover air leak location and repair.
  
  NO: GO TO 2.
REPLACE ECM
1. Stop engine.
2. Replace ECM.
3. Go to "WORK PROCEDURE ".
  INSPECTION END