1.CHECK FOR EXHAUST GAS LEAK

1. Start engine and run it at idle.
2. Listen for an exhaust gas leak of exhaust manifold.

Is exhaust gas leak detected?
YES>>GO TO 2.
NO>>Repair or replace.
2.CHECK FOR INTAKE AIR LEAK
Listen for an intake air leak between electric throttle control actuator and compressor wheel.
Is intake air leak detected?
YES>>GO TO 3.
NO>>Repair or replace.
3.CHECK GROUND CONNECTION

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

Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair or replace ground connection.
4.CHECK TURBOCHARGER BOOST SENSOR POWER SUPPLY CIRCUIT

1. Disconnect turbocharger boost sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between turbocharger boost sensor harness connector and ground.

   Turbocharger boost sensor | Ground | Voltage
   Bank | Connector | Terminal
   1 | F14 | 1 | Ground | Approx. 5 V
   2 | F30 | 1

Is the inspection result normal?
YES>>GO TO 5.
NO>>Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK TURBOCHARGER BOOST SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between turbocharger boost sensor harness connector and ECM harness connector.

   Turbocharger boost sensor | ECM | Continuity
   Bank | Connector | Terminal | Connector | Terminal
   1 | F14 | 3 | F102 | 75 | Existed
   2 | F30 | 3

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

Is the inspection result normal?
YES>>GO TO 6.
NO>>Repair open circuit, short to ground or short to power in harness or connectors.
6.CHECK TURBOCHARGER BOOST SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Check the continuity between turbocharger boost sensor harness connector and ECM harness connector.

   Turbocharger boost sensor | ECM | Continuity
   Bank | Connector | Terminal | Connector | Terminal
   1 | F14 | 2 | F102 | 80 | Existed
   2 | F30 | 2 | 79

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

Is the inspection result normal?
YES>>GO TO 7.
NO>>Repair open circuit, short to ground or short to power in harness or connectors.
7.CHECK TURBOCHARGER BOOST SENSOR
Refer to Component Inspection (GT-R certified NISSAN dealer).
Is the inspection result normal?
YES>>GO TO 8.
NO>>Replace turbocharger boost sensor.
8.CHECK RECIRCULATION VALVE
Refer to Inspection (GT-R certified NISSAN dealer).
Is the inspection result normal?
YES>>GO TO 9.
NO>>Replace recirculation valve.
9.CHECK EXHAUST MANIFOLD AND TURBOCHARGER ASSEMBLY
Refer to Inspection (GT-R certified NISSAN dealer).
Is the inspection result normal?
YES>>GO TO 10.
NO>>Replace exhaust manifold and turbocharger assembly.
10.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END