Service Procedure

You will replace the following sensors: Crankshaft Position Sensor, Camshaft Position Sensors, and in some cases the Variable Timing Control Sensors. The service procedures are divided by engine "family" and vehicle model (see Figure C).

NOTE:
Use Service Comm to confirm the vehicle is included in this campaign before performing the following procedure.





IMPORTANT
^ There are two sensor kits associated with this campaign - one kit for each engine family (see Figure A).

^ THE SENSORS IN EACH KIT ARE DIFFERENT. IT IS CRITICAL THAT EACH SENSOR BE INSTALLED IN THE CORRECT LOCATION. REFER TO FIGURE A AND THE ILLUSTRATIONS IN EACH REPAIR SECTION FOR SENSOR LOCATIONS.

^ Each new sensor (within each kit) is contained in a bag. The bag is labeled with the Nissan part number. Keep the sensor in the bag until just before it is installed. The supplier part number is molded onto the face of the sensor. This number starts with "A29-".

^ The Crankshaft and Camshaft Position Sensors in Sensor Kit P/N 23731-4M527 look the same. To help you tell the difference between these sensors, a white paint mark was added to the Crankshaft sensor (see Figure A).

^ The old and new sensors may appear identical, therefore KEEP THEM SEPARATE.





^ When disconnecting the vehicle harness connector* from the sensor(s); first PUSH the Release Button inward, then PULL the connector back (see Figure B). NOTE: Do NOT pull on the wires when disconnecting the connector.

* The button for this connector is green and the connector body color is green or black.





VQ35DE Engine (Use Kit P/N 23731-AL627)

I35 (CA33)

IMPORTANT

^ THE SENSORS IN THIS KIT ARE DIFFERENT. IT IS CRITICAL THAT EACH SENSOR BE INSTALLED IN THE CORRECT LOCATION. REFER TO "FIGURE A" AND THE ILLUSTRATIONS IN THIS REPAIR SECTION FOR SENSOR LOCATIONS.

^ Each new sensor (within each kit) is contained in a bag. The bag is labeled with the Nissan part number. Keep the sensor in the bag until just before it is installed. The supplier part number is on the face of the sensor. This number starts with "A29-".

^ The old and new sensors may appear identical therefore KEEP THEM SEPARATE.

Camshaft Position Sensor Replacement (P/N 23731-AL670/A29-632-LJ0 & 23731-6J960*/A29-640-CJ0)

* This sensor can be substituted with P/N 23731-6J906/A29-640-C20.

1. Record all radio station presets.

2. Disconnect the negative battery cable.





3. Locate the Camshaft Position Sensors (see Figure 1).

4. Disconnect the vehicle wire harness connectors from the sensors.

NOTE:
If the connector will not release for you see Figure B (if applicable).

5. Remove and save the bolts that hold the sensors in place.

IMPORTANT:
Perform the following steps on only ONE sensor at a time.

6. Remove the Camshaft Position Sensor with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

7. Clean the hole that the old sensor was removed from.

8. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring on the new sensor.

9. Insert (until fully seated) the NEW sensor into the hole with a pushing and twisting motion being careful not to damage the O-ring.

10. Re-install and tighten the sensor mounting bolt to 74.96 in-lb (8.4 - 10.8 N-m, 0.86-1.1 kg-m).

11. Re-connect the vehicle wire harness connectors to the sensors.

Crankshaft Position Sensor Replacement (P/N 23731-AL660/A29-662-LJ0)

1. Raise the vehicle on a hoist.





2. Remove the Lower Engine Cover (see Figure 2).





3. Locate the Crankshaft Position Sensor (see Figure 3).

4. Disconnect the vehicle wire harness connector from the sensor.

NOTE:
If the connector will not release for you see Figure B (if applicable).

5. Remove and save the bolt that holds the sensor in place.

6. Remove the Crankshaft Position Sensor with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

7. Clean the hole that the old sensor was removed from.

8. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring (if applicable) on the new sensor.

9. Insert (until fully seated) the NEW sensor into the hole with a pushing and twisting motion being careful not to damage the O-ring.

10. Re-install and tighten the sensor mounting bolt to 74.96 in-lb (8.4 - 10.8 N-m, 0.86 - 1.1 kg-m).

11. Re-connect the vehicle wire harness connector to the sensor.

12. Lower the vehicle to the ground.

13. Reconnect the battery cable and reset the radio station presets and clock.

G35 Sedan and Coupe (V35 and CV35)

IMPORTANT
^ THE SENSORS IN THIS KIT ARE DIFFERENT. IT IS CRITICAL THAT EACH SENSOR BE INSTALLED IN THE CORRECT LOCATION. REFER TO "FIGURE A" AND THE ILLUSTRATIONS IN THIS REPAIR SECTION FOR SENSOR LOCATIONS.

^ Each new sensor (within each kit) is contained in a bag. The bag is labeled with the Nissan part number. Keep the sensor in the bag until just before it is installed. The supplier part number is on the face of the sensor. This number starts with "A29-".

^ The old and new sensors may appear identical, therefore KEEP THEM SEPARATE.

Camshaft Position Sensor Replacement (Driver's Side) P/N 23731-AL670/A29-632-LJ0)

1. Record all radio station presets.

2. Disconnect the negative battery cable.





3. Remove the Upper Engine Cover (see Figure 4).

NOTE:
If equipped the Strut Tower Cross Bar will have to be re-positioned to remove the Upper Engine Cover.





4. Remove the Air Inlet Duct and Throttle Body (see Figure 5).





CAUTION:
Avoid engine damage; place a shop rag in the opening of the intake collector (see Figure 6).

5. Locate the driver's side (LH) Camshaft Position Sensor (see Figure 6).

6. Disconnect the vehicle wire harness connector from the sensor.

NOTE:
If the connector will not release for you see Figure B (if applicable).

7. Remove and save the bolt that holds the sensor in place.

8. Remove the Camshaft Position Sensor with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

9. Clean the hole that the old sensor was removed from.

10. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring on the new sensor.

11. Insert (until fully seated) the NEW sensor into the hole with a pushing and twisting motion being careful not to damage the O-ring.

12. Re-install and tighten the sensor mounting bolt to 74-96 in-lb (8.4 - 10.8 N-m, 0.86 - 1.1 kg-m).

13. Re-connect the vehicle wire harness connector to the sensor.

Camshaft Position Sensor Replacement (Passenger Side) P/N 23731-6J960*/A29-640-CJ0)

* This sensor can be substituted with P/N 23731-6J906/A29-640-C20.





1. Locate the passenger side (RH) Camshaft Position Sensor (see Figure 7).

2. Disconnect the vehicle wire harness connector from the sensor.

NOTE:
If the connector will not release for you see Figure B (if applicable).

3. Remove and save the bolt that holds the sensor in place.

4. Remove the Camshaft Position Sensor with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

5. Clean the hole that the old sensor was removed from.

6. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring on the new sensor.

7. Insert (until fully seated) the NEW sensor into the hole with a pushing and twisting motion being careful not to damage the O-ring.

8. Re-install and tighten the sensor mounting bolt to 74-96 in-lb (8.4 - 10.8 N-m, 0.86 - 1.1 kg-m).

9. Re-connect the vehicle wire harness connector to the sensor.

10. Remove the shop rag from the intake collector opening. Then re-install the Throttle Body using the new gasket (see Parts Information). Tighten the Throttle Body screws to 64 - 86 in-lb (7.2 - 9.7 N-m, 0.73 - 0.99 kg-m).

11. Re-install the Air Inlet Duct Upper Engine Cover and if applicable the Strut Tower Cross Bar.

Crankshaft Position Sensor Replacement (P/N 23731-AL660/A29-662-LJ0)

1. Raise the vehicle on a hoist.





2. Remove the Lower Engine Cover (see Figure 8).

3. Locate the Crankshaft Position Sensor:





^ Figure 9 shows the G35 Sedan Crankshaft Position Sensor location





^ Figure 9a shows the G35 Coupe Crankshaft Position Sensor location

4. Disconnect the vehicle wire harness connector from the sensor.

NOTE:
If the connector will not release for you see Figure B (if applicable).

5. Remove and save the bolt that holds the sensor in place.

6. Remove the Crankshaft Position Sensor with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

7. Clean the hole that the old sensor was removed from.

8. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring (if applicable) on the new sensor.

9. Insert (until fully seated) the NEW sensor into the hole with a pushing and twisting motion being careful not to damage the O-ring.

10. Re-install and tighten the sensor mounting bolt to 74-96 in-lb (8.4 - 10.8 N-m, 0.86 - 1.1 kg-m).

11. Re-connect the vehicle wire harness connector to the sensor.

12. Re-install the Lower Engine Cover.

13. Lower the vehicle to the ground.

14. Reconnect the battery cable and reset the radio station presets and clock.





M45 (Y34)

IMPORTANT
^ THE SENSORS IN THIS KIT ARE DIFFERENT. IT IS CRITICAL THAT EACH SENSOR BE INSTALLED IN THE CORRECT LOCATION. REFER TO "FIGURE A" AND THE ILLUSTRATIONS IN THIS REPAIR SECTION FOR SENSOR LOCATIONS.

^ Each new sensor (within each kit) is contained in a bag. The bag is labeled with the Nissan part number. Keep the sensor in the bag until just before it is installed. The supplier part number is on the face of the sensor. This number starts with "A29-".

^ The Crankshaft and Camshaft Position Sensors in Sensor Kit P/N 23731-4M527 look the same. To help you tell the difference between these sensors a white paint mark was added to the Crankshaft sensor (see the illustration above).

^ The old and new sensors may appear identical therefore KEEP THEM SEPARATE.

1. Record all radio station presets.

2. Disconnect the negative battery cable.





3. Remove the Upper Engine Cover and Air Inlet Duct (see Figure 10).

Camshaft Position Sensor and Variable Timing Control Sensors Replacement





4. Locate the Camshaft Position Sensor and the Variable Timing Control Sensors (see Figure 11).

5. Disconnect the vehicle wire harness connectors from the sensors.

NOTE:
If the connector will not release for you see Figure B (if applicable).

6. Remove and save the bolts that hold the sensors in place.

Camshaft Position Sensor (P/N 23731-4M560/A29-630-BJ0)

7. Remove the Camshaft Position Sensor with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

8. Clean the hole that the old sensor was removed from.

9. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring on the new sensor.

10. Insert (until fully seated) the NEW sensor into the hole with a pushing and twisting motion being careful not to damage the O-ring.

11. Re-install and tighten the sensor mounting bolt to 63 - 96 in-lb (7.1 - 10.8 N-m, 0.72 - 1.1 kg-m).

12. Re-connect the vehicle wire harness connector to the sensors.

Variable Timing Control Sensors (P/N 23731-2Y560/A29-652-NJ0)

IMPORTANT:
Perform the following steps on only ONE sensor at a time.

13. Remove the Variable Timing Control Sensor with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

14. Clean the hole that the old sensor was removed from.

15. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring on the new sensor.

16. Insert (until fully seated) the NEW sensor into the hole with a pushing and twisting motion being careful not to damage the O-ring.

17. Re-install and tighten the sensor mounting bolt to 63 - 96 in-lb (7.1 - 10.8 N-m, 0.72 - 1.1 kg-m).

18. Re-connect the vehicle wire harness connectors to the sensors.

19. Re-install the Upper Engine Cover and Air Inlet Duct.





Crankshaft Position Sensor* Replacement (P/N 23731-4M566/A29-630-BJ2)

* This sensor has a white paint mark on it (see Figure 13).

1. Raise the vehicle on a hoist.





2. Remove the Lower Engine Cover (see Figure 12).

3. Locate the Crankshaft Position Sensor (see Figure 13).

4. Disconnect the vehicle wire harness connector from the sensor. NOTE: If the connector will not release for you see Figure B (if applicable).

5. Remove and save the bolt that holds the sensor in place.

6. Remove the Crankshaft Position Sensor with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

7. Clean the hole that the old sensor was removed from.

8. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring (if applicable) on the new sensor.

9. Insert (until fully seated) the NEW sensor into the hole with a pushing and twisting motion being careful not to damage the O-ring.

10. Re-install and tighten the sensor mounting bolt to 74.96 in-lb (8.4 - 10.8 N-m, 0.86 - 1.1 kg-m).

11. Re-connect the vehicle wire harness connector to the sensor.

12. Re-install the Lower Engine Cover.

13. Lower the vehicle to the ground.

14. Reconnect the battery cable and reset the radio station presets and clock.

Q45 (F50)





IMPORTANT
^ THE SENSORS IN THIS KIT ARE DIFFERENT. IT IS CRITICAL THAT EACH SENSOR BE INSTALLED IN THE CORRECT LOCATION. REFER TO "FIGURE A" AND THE ILLUSTRATIONS IN THIS REPAIR SECTION FOR SENSOR LOCATIONS.

^ Each new sensor (within each kit) is contained in a bag. The bag is labeled with the Nissan part number. Keep the sensor in the bag until just before it is installed. The supplier part number is on the face of the sensor. This number starts with "A29-".

^ The Crankshaft and Camshaft Position Sensors in Sensor Kit P/N 23731-4M527 look the same. To help you tell the difference between these sensors a white paint mark was added to the Crankshaft sensor (see the illustration).

^ The old and new sensors may appear identical therefore KEEP THEM SEPARATE.

1. Record all radio station presets.

2. Disconnect the negative battery cable.





3. Remove the Upper Engine Cover and Air Inlet Duct (see Figure 14).

Camshaft Position Sensor and Variable Timing Control Sensors Replacement





4. Locate the Camshaft Position Sensor and the Variable Timing Control Sensors (see Figure 15).

5. Disconnect the vehicle wire harness connectors from the sensors.

NOTE:
If the connector will not release for you see Figure B (if applicable).

6. Remove and save the bolts that hold the sensors in place.

Camshaft Position Sensor (P/N 23731-4M560/A29-630-BJ0)

7. Remove the Camshaft Position Sensor with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

8. Clean the hole that the old sensor was removed from.

9. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring on the new sensor.

10. Insert (until fully seated) the NEW sensor into the hole with a pushing and twisting motion being careful not to damage the O-ring.

11. Re-install and tighten the sensor mounting bolt to 63 - 96 in-lb (7.1 - 10.8 N-m, 0.72 - 1.1 kg-m).

12. Re-connect the vehicle wire harness connector to the sensor.

Variable Timing Control Sensors (P/N 23731-2Y560/A29-652-NJ0)

IMPORTANT:
Perform the following steps on only ONE sensor at a time.

13. Remove the Variable Timing Control Sensors with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

14. Clean the hole that the old sensor was removed from.

15. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring on the new sensor.

16. Insert (until fully seated) the NEW sensors into the hole with a pushing and twisting motion being careful not to damage the O-ring.

17. Re-install and tighten the sensor mounting bolts to 63 - 96 in-lb (7.1 - 10.8 N-m, 0.72 - 1.1 kg-m).

18. Re-connect the vehicle wire harness connectors to the sensors.

19. Re-install the Upper Engine Cover and Air Inlet Duct.





Crankshaft Position Sensor* Replacement (P/N 23731-4M566/A29-630-BJ2)

* This sensor has a white paint mark on it (see Figure 17).

1. Raise the vehicle on a hoist.





2. Remove the Lower Engine Cover (see Figure 16).

3. Locate the Crankshaft Position Sensor (see Figure 17).

4. Disconnect the vehicle wire harness connector from the sensor.

NOTE:
If the connector will not release for you see Figure B (if applicable).

5. Remove and save the bolt that holds the sensor in place.

6. Remove the Crankshaft Position Sensor with a pulling and twisting motion. Then using a pair of pliers break the connector on the OLD sensor so it cannot be reused.

7. Clean the hole that the old sensor was removed from.

8. Open the kit bag remove the NEW sensor and apply a thin coat of clean engine oil to the O-ring (if applicable) on the new sensor.

9. Insert (until fully seated) the NEW sensor into the hole with a pushing and twisting motion being careful not to damage the O-ring.

10. Re-install and tighten the sensor mounting bolt to 74.96 in-lb (8.4 - 10.8 N-m, 0.86 - 1.1 kg-m).

11. Re-connect the vehicle wire harness connector to the sensor.

12. Re-install the Lower Engine Cover.

13. Lower the vehicle to the ground.

14. Reconnect the battery cable and reset the radio station presets and clock.