1.CHECK PCV HOSE CONNECTION Confirm that PCV hose is connected correctly. Is the inspection result normal? YES>>GO TO 2. NO>>Repair or replace malfunctioning part.
2.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 3.
3.REPLACE ECM

1. Stop engine.
2. Replace ECM.
3. Go to Special Repair Requirement (GT-R certified NISSAN dealer).

>>INSPECTION END