1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.
2. Check ground connection M95. Refer to Ground Inspection in Circuit Inspection.

Is the inspection result normal?
YES>>GO TO 2.
NO>>Repair or replace ground connection.
2.CHECK INTAKE AIR TEMPERATURE SENSOR POWER SUPPLY CIRCUIT

1. Disconnect mass air flow sensor (bank 1) harness connector.
2. Turn ignition switch ON.
3. Check the voltage between mass air flow sensor (bank 1) harness connector and ground.

   MAF sensor (bank 1) | Ground | Voltage (V)
   Connector | Terminal
   F15 | 2 | Ground | Approx. 5

Is the inspection result normal?
YES>>GO TO 3.
NO>>Repair open circuit, short to ground or short to power in harness or connectors.
3.CHECK INTAKE AIR TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between mass air flow sensor (bank 1) harness connector and ECM harness connector.

   MAF sensor (bank 1) | ECM | Continuity
   Connector | Terminal | Connector | Terminal
   F15 | 1 | F101 | 22 | Existed

4. Also check harness for short to ground and short to power.

Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK INTAKE AIR TEMPERATURE SENSOR
Refer to Component Inspection (GT-R certified NISSAN dealer).
Is the inspection result normal?
YES>>GO TO 5.
NO>>Replace mass air flow sensor (with intake air temperature sensor) (bank 1).
5.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END