Front Oxygen (A/F) Sensor

Front Oxygen (A/F) Sensor

REMOVAL
1. Set the vehicle on a lift.
2. Remove the collector cover.
3. Disconnect the ground cable from battery.






4. Disconnect the connector from the front oxygen (A/F) sensor, and remove the clip (A) holding the return hose and the front oxygen (A/F) sensor harness.






5. Remove the clip (A) and (B) holding the front oxygen (A/F) sensor harness.






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






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


INSTALLATION
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. Affix the front oxygen (A/F) sensor harness with the clip (A) and (B).






6. Connect the front oxygen (A/F) sensor connector, and hold the return hose and the front oxygen (A/F) sensor harness with the clip (A).






7. Connect the battery ground cable to the battery.