Removal Procedure

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

Fig 1: View Of O2 Sensor, Connector, Harness And Retainers

Courtesy of GENERAL MOTORS CORP.

Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
Disconnect the connector position assurance (CPA) retainer.
NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice in Cautions and Notices.
Disconnect the HO2S sensor electrical connector.

Fig 2: Locating Heated O2 Sensor (Sensor 1)

Courtesy of GENERAL MOTORS CORP.

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