Upstream O2S Sensors
WARNING: This page is about a different variant/trim than selected.
- Raise and support the vehicle.WARNING:
The exhaust pipes and catalytic converter become very hot during engine operation. Allow the engine to cool before removing the oxygen sensor.
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 O2S sensors (1, 2) electrical connectors.
- Remove the left catalytic converter heat shield.
- Using the appropriate oxygen sensor removal/installation tool, remove the O2S sensors.
- Clean the threads in the exhaust pipes using an appropriate tap.