Front Oxygen (A/F) Sensor

Front Oxygen (A/F) Sensor

REMOVAL

1. Disconnect the ground cable from battery.
2. Lift up the vehicle.
3. Disconnect the connector (A) of the front oxygen (A/F) sensor.






4. Apply spray-type lubricant to the threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
5. 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 over 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.

Tightening torque: 21 N.m (2.1 kgf-m, 15.5 ft-lb)






3. Connect the connector (A) of front oxygen (A/F) sensor.






4. Lower the vehicle.
5. Connect the battery ground terminal.