Heated Oxygen Sensor: Removal

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Locate HO2S to be removed. See Figure or Figure . Turn ignition off. On HO2S 1, disconnect the electrical connector. On all applications, raise and support vehicle. On HO2S 2 disconnect the electrical connector. Using Oxygen Sensor Wrench (J-39194-B), remove appropriate HO2S.