Rear Oxygen Sensor

REMOVAL




1. Disconnect battery ground cable.




2. Disconnect connector from rear oxygen sensor.
3. Lift-up the vehicle.
4. Apply SUBARU CRC or its equivalent to threaded portion of rear oxygen sensor, and leave it for one minute or more.

SUBARU CRC (Part No 004301003)

5. Remove rear oxygen sensor.






CAUTION: When removing, do not force rear oxygen sensor in an unnatural way especially when exhaust pipe is cold, otherwise it will damage exhaust pipe.

INSTALLATION

1. Before installing rear oxygen sensor, apply anti-seize compound only to threaded portion of rear oxygen sensor to make the next removal easier.

CAUTION: Never apply anti-seize compound to protector of rear oxygen sensor.

Anti-seize compound: SS-30 by JET LUBE




2. Install rear oxygen sensor.




3. Connect connector to rear oxygen sensor.
4. Lower the vehicle.




5. Connect battery ground cable.