Removal Procedure

Disconnect the heated oxygen sensor (HO2S) electrical connector (5) from the following:
- The engine wiring harness electrical connector
- The camshaft cover

Fig 1: View Of ECT Sensor, Fuel Injector, Ignition Coil & HO2S Engine Wiring Harness Electrical Connectors

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 exhaust manifold. See Special Tools and Equipment .

Fig 2: View Of HO2S - Position 1

Courtesy of GENERAL MOTORS CORP.