Sierra Denali RWD V8-6.2L (2009)
3. Connect the HO2S electrical connector (1) to the engine wiring harness electrical connector (2).
4. Install the CPA retainer (9).
5. Lower the vehicle.
Heated Oxygen Sensor Replacement - Bank 2 Sensor 2
Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (1500 Series)
Removal Procedure
Caution: Refer to Heated Oxygen and Oxygen Sensor Caution (See: Service Precautions/Heated Oxygen and Oxygen Sensor Caution)
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Service and Repair) .
2. Remove the connector position assurance (CPA) retainer (5).
3. Disconnect the engine wiring harness electrical connector (4) from the HO2S electrical connector (3).
4. Remove the HO2S electrical connector clip from the engine harness clip (6).