Front Oxygen (A/F) Sensor

Front Oxygen (A/F) Sensor

REMOVAL
1. Set the vehicle on a lift.




2. Disconnect the ground cable from the battery.
3. Remove the air intake duct.




4. Remove the clip fastening the harness and disconnect the front oxygen (A/F) sensor connector.
A. Front oxygen (A/F) sensor connector
B. Rear oxygen 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, because it can 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 or equivalent




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

Tightening torque: 21 N.m (2.1 kgf-m, 15.2 ft-lb)

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 battery ground cable to battery.