Rear Oxygen Sensor

Rear Oxygen Sensor

REMOVAL
1. Disconnect the ground cable from battery.






2. Lift up the vehicle.
3. Remove the under cover.
4. Disconnect the rear oxygen sensor connector.






5. Apply spray-type lubricant to the threaded portion of rear oxygen sensor, and leave it for one minute or more.
6. Remove the rear oxygen sensor.

CAUTION: When removing the rear oxygen 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 rear oxygen sensor, apply the anti-seize compound only to the threaded portion of rear oxygen sensor to make the next removal easier.

CAUTION: Never apply anti-seize compound to the protector of rear oxygen sensor.

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

2. Install the rear oxygen sensor.

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






3. Connect the rear oxygen sensor connector.

NOTE: Be careful not to allow the rear oxygen sensor harness to interfere with the sensor unit and the front oxygen (A/F) sensor harness.






4. Install the under cover.
5. Lower the vehicle.
6. Connect the battery ground terminal.