Removal Procedure

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
Disconnect the heated oxygen sensor (HO2S) electrical connector (3) from the engine wiring harness connector (1).

Fig 1: View Of HO2S Electrical Connector

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Excessive Force and Oxygen Sensor Notice in Cautions and Notices.

Using the J 39194-B , remove the HO2S from the catalytic converter. See Special Tools and Equipment .

Fig 2: View Of HO2S - Position 2

Courtesy of GENERAL MOTORS CORP.