GM Service Manual Online
For 1990-2009 cars only

Special Tools

EN-46577 Oxygen Sensor Remover/Installer

Removal Procedure

  1. Remove the windshield wiper motor and link assembly. Refer to Windshield Wiper Motor Replacement.
  2. Remove the outer cowl top panel.
  3. Remove the engine cover. Refer to Engine Cover Replacement.

  4. Object Number: 2016674  Size: SH
  5. Disconnect the air fuel ratio sensor connector (1) and clamp (2).

  6. Object Number: 2016676  Size: SH
  7. Using the EN-46577 remover/installer  (1), remove the air fuel ratio sensor.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2016676  Size: SH
  1. Using the EN-46577 remover/installer  (1), install the air fuel ratio sensor and tighten to 44N·m (32 lb ft).

  2. Object Number: 2016674  Size: SH
  3. Connect the air fuel ratio sensor connector (1) and clamp (2).
  4. Install the engine cover. Refer to Engine Cover Replacement.
  5. Install the outer cowl top panel.
  6. Install the windshield wiper motor and link assembly. Refer to Windshield Wiper Motor Replacement.
  7. Inspect for exhaust gas leaks.