Legacy Wagon 4WD F4-2.5L DOHC (1996)
Oxygen Sensor: Service and Repair
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.