Legacy Sport Utility LTD AWD F4-2.5L DOHC (1999)
Oxygen Sensor: Service and Repair
Front Oxygen (A/F) Sensor
REMOVAL
1. Disconnect battery ground cable.
2. Remove air intake duct.
2500 CC
3. Disconnect connector from front oxygen sensor.
4. Lift-up the vehicle.
5. Apply SUBARU CRC or its equivalent to threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
SUBARU CRC (Part No.004301003)
6. Remove front oxygen (A/F) sensor.