Removal Procedure

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Refer to HEATED OXYGEN AND OXYGEN SENSOR NOTICE .

Fig 1: Identifying Bank 2 Sensor 2 Electrical Harness Connector

Courtesy of GENERAL MOTORS CORP.

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
Remove the connector position assurance (CPA) retainer.
Disconnect the bank 2 sensor 2 electrical connector.

Fig 2: Identifying HO2S

Courtesy of GENERAL MOTORS CORP.

Remove the bank 2 sensor 2 from the catalytic converter.