Oxygen Sensor: Service and Repair

WARNING: To avoid danger of being burned, do not touch exhaust system when system is hot. Oxygen sensor removal should be performed when system is cool.

REMOVAL
- Disconnect negative cable from battery.

Oxygen Sensor Connector:

- Disconnect coupler of oxygen sensor.

Oxygen Sensor:

- Remove exhaust manifold upper cover.
- Remove oxygen sensor from exhaust manifold.


NOTE: Be careful not to expose it to excessive shock.



INSTALLATION
- Reverse removal procedure noting the following.

Exhaust Manifold With Upper Cover Removed:

^ Tighten oxygen sensor to specified torque.

Tightening Torque (a): 40-46 N.m (4.0-4.6 kg-m, 29.0-34.0 lb-ft)

^ Connect coupler of oxygen sensor and clamp 'wire harness securely.
^ After installing oxygen sensor, start engine and check that no exhaust gas leakage exists.