For 1990-2009 cars

### Tools Required

J 39194-C Oxygen Sensor Wrench

### Removal Procedure

Important: Bank 2 are cylinders 2, 4, and 6 which are the closest to the front of the vehicle.

1. Turn the ignition OFF.
2. Disconnect the bank 2 heated oxygen sensor 2 harness connector.
3. Use liquid penetrant before removing the sensor.

Caution: Removal of the sensor is easier if the exhaust system is warmed up slightly. Be careful that it is not too hot to work on safely. Applying penetrating oil to the threads while moving the sensor back and forth will also aid in removal and will decrease the chance of exhaust pipe thread damage.

Caution: Ensure that the vehicle is properly supported and squarely positioned. To help avoid personal injury when a vehicle is on a hoist, provide additional support for the vehicle on the opposite end from which the components are being removed.

4. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
5. Remove the bank 2 heated oxygen sensor 2 using the J 39194-C .

### Installation Procedure

1. Apply a small amount of anti-seize compound SA P/N 21485279, or equivalent, to the threads of the new heated oxygen sensor.

Notice: Refer to Fastener Notice in the Preface section.

2. Install the bank 2 heated oxygen sensor 2 using the J 39194-C .

Tighten
Tighten the oxygen sensor (lower exhaust pipe) to 45 N·m (33 lb ft).

3. Lower the vehicle.
4. Connect the heated oxygen sensor harness connector. Make sure the locking tab is in the full closed position.
5. Start the engine and make sure no exhaust leaks exist.