Removal Procedure
- Turn the ignition OFF.
- Remove the fuel injector sight shield, if necessary. Refer to Fuel Injector Sight Shield Replacement.
- Disconnect the heated oxygen sensor (HO2S) electrical connector.
- Remove the HO2S electrical connector from the wiring harness bracket.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
- Remove the HO2S from the catalytic converter.
Caution: The Heated Oxygen Sensor (HO2S) and the Oxygen Sensor use a permanently attached pigtail and connector. Do not remove this pigtail from the Heated Oxygen Sensor. Damage or the removal of the pigtail or the connector could affect the proper operation of the sensor.
Take care when handling the HO2S and the O2S. Keep the in-line electrical connector and the louvered end free of grease, dirt, or other contaminants. Also avoid using cleaning solvents of any type. Do not drop the HO2S or the O2S. Do not roughly handle the HO2S or the O2S.Note: Bank 1 is the right bank.
Caution: Refer to Oxygen Sensor Caution in the Preface section.
Note: Removal of the oxygen sensor is easier when the engine temperature is above 48°C (120°F).
Installation Procedure
- Install the HO2S to the catalytic converterand tighten to 40 N·m (30 lb ft).
- Lower the vehicle.
- Install the HO2S electrical connector to the wiring harness bracket.
- Connect the HO2S electrical connector.
- Install the fuel injector sight shield, if necessary. Refer to Fuel Injector Sight Shield Replacement.
Caution: Refer to Component Fastener Tightening Caution in the Preface section.
Caution: A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.
