Front Oxygen (A/F) Sensor

Front Oxygen (A/F) Sensor

REMOVAL

1. Set the vehicle on a lift.
2. Disconnect the ground cable from battery.






3. Remove the air intake duct.
4. Remove the clip fastening the harness and disconnect the front oxygen (A/F) sensor connector.






5. Lift up the vehicle.
6. Remove the under cover.
7. Apply spray-type lubricant to the threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
8. Remove the front oxygen (A/F) sensor.

CAUTION: When removing the front oxygen (A/F) sensor, wait until exhaust pipe cools, otherwise it will damage the exhaust pipe.






INSTALLATION

CAUTION: If lubricant is spilt onto the exhaust pipe, wipe it off with cloth to avoid emission of smoke or causing a fire.

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

CAUTION: Never apply anti-seize compound to the protector of front oxygen (A/F) sensor.

Anti-seize compound:
NEVER-SEEZ NSN, JET LUBE SS-30 or equivalent

2. Install the front oxygen (A/F) sensor.






3. Install the under cover.
4. Lower the vehicle.
5. Connect the connector of front oxygen (A/F) sensor connector and fasten the harness with clips.






6. Connect the ground cable to battery.