Front Oxygen (A/F) Sensor

FRONT OXYGEN (A/F) SENSOR

REMOVAL

1. Remove the collector cover.
2. Disconnect the ground cable from battery.






3. Remove the air intake duct (rear) and air cleaner case.
4. Disconnect the connectors from front oxygen (A/F) sensor.






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 completely 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: 30 N.m (3.1 kgf-m, 22.1 ft-lb)






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






6. Install the air intake duct (rear) and air cleaner case.
7. Connect the battery ground terminal.






8. Install the collector cover.