Sensor, Oxygen: Removal: Front: Notes
The engine is equipped with four heated oxygen sensors:
WARNING:
The exhaust pipes and catalytic converter become very hot during engine operation. Allow the engine to cool before removing the oxygen sensor.
- Disconnect and isolate the negative battery cable.CAUTION:
When disconnecting the oxygen sensor electrical connector, do not pull directly on the wire going into the sensor. The sensor wiring can be damaged resulting in sensor failure.
- Disconnect the heated oxygen sensor electrical connectors (1).
- Remove the up stream oxygen sensor (2).
- Raise the vehicle.
- Remove the belly pan (1).
- Disconnect the heated oxygen sensor electrical connector (3).
- Remove the down stream O2 sensor (3).
- Clean the exhaust pipe threads using an appropriate tap.