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.

1. Disconnect negative cable from battery.
2. Disconnect coupler of heated oxygen sensor and release its wire harness from clamps.
3. Remove exhaust manifold cover.





4. Remove heated oxygen sensor from exhaust manifold.
5. Reverse removal procedure noting the following:
- Tighten heated oxygen sensor to specified torque.

Tightening Torque: 45 Nm (32.5 lb ft)

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