Front Oxygen Sensor

FRONT OXYGEN SENSOR
REMOVAL





1. Remove Air Intake Duct.





2. Disconnect connector from front oxygen sensor.
3. Lift-up the Vehicle.
4. Apply Subaru CRC (Part No. 004301003) or its equivalent to threaded portion of front oxygen sensor, and leave it for one minute or more.





5. Remove front oxygen sensor.

CAUTION: When removing oxygen sensor, do not force the oxygen sensor especially when the exhaust pipe is cold, otherwise it will damage the exhaust pipe.

INSTALLATION





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

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





2. Install front oxygen sensor.

Tightening Torque: 21 ± 3 N.m (15.2 ± 2.2 ft-lb).

3. Lower the vehicle.
4. Connect connector of front oxygen sensor.
5. Install air intake duct.