Removal Procedure

Courtesy of GENERAL MOTORS COMPANY
NOTE:
- The heated oxygen sensor in-line connector and louvered end MUST be kept clear of all grease, dirt, and other contaminants. Do NOT use cleaning solvents of any type. Do NOT drop or roughly handle the sensor.
- The heated oxygen sensor MAY be difficult to remove when the engine temperature is less than 48°C (120°F).
Disconnect the electrical connector.
Heated Oxygen Sensor (1) - Remove