GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 SLS 🢒 Preface 🢒 Dangers, Warnings, and Cautions 🢒 Heated Oxygen Sensor Replacement - Bank 2 Sensor 1

Removal Procedure

    Object Number: 887890 Size: SH
  1. Turn the ignition OFF.
  2. Remove the fuel injector sight shield, if necessary. Refer to Fuel Injector Sight Shield Replacement.
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  4. Disconnect the heated oxygen sensor (HO2S) electrical connector.
  5. Remove the HO2S electrical connector from the wiring harness bracket.

    6. Caution: Refer to Oxygen Sensor Caution in the Preface section.


    Object Number: 887892 Size: SH

    Note: Removal of the oxygen sensor is easier when the engine temperature is above 48°C (120°F).

  6. Remove the HO2S.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 887892 Size: SH

    Important: New oxygen sensors should have a special anti-seize compound already applied to the sensor threads. If you are installing the original sensor, apply anti-seize compound GM P/N 5613695 or equivalent to the sensor threads.

  1. Install the HO2S and tighten to 43 N·m (32 lb ft).

    2. Object Number: 887890 Size: SH
  2. Install the HO2S electrical connector to the wiring harness bracket.
  3. Connect the HO2S electrical connector.
  4. Lower the vehicle.
  5. Install the fuel injector sight shield, if necessary. Refer to Fuel Injector Sight Shield Replacement.