Notice: Refer to Oxygen Sensor Notice in the Preface section.

Important: 

1. Remove the engine sight shield. Refer to Intake Manifold Sight Shield Replacement .

Important: Disconnect the positive crankcase ventilation (PCV) fitting from under the front of the supercharger inlet duct during inlet duct removal.

2. Remove the ball studs (1), loosen the duct clamps (2) and remove the front section of the supercharger inlet duct assembly. Refer to Supercharger Inlet Duct Assembly Replacement .



3. Release the lock tab, and disconnect the PCV foul air tube (1) from the PCV orifice fitting on the right camshaft cover. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .



4. Separate the bank 1, sensor 1 electrical connector assembly (1) from the fuel rail bracket.
5. Disconnect the oxygen sensor electrical connector from the engine wiring harness connector.



6. Using a small screw driver, remove the electrical connector retainer (1) from the electrical connector.
7. Attach a suitable length of mechanics wire to the oxygen sensor electrical connector.



8. Separate the bank 1, sensor 2 electrical connector assembly (1) from the fuel rail bracket.
9. Disconnect the oxygen sensor electrical connector from the engine wiring harness connector.
10. Remove both oxygen sensor electrical connectors and wires from under the two engine wire harnesses.
11. Remove both oxygen sensor electrical connectors and wires from under the rear section of the supercharger inlet duct. Reposition the duct as necessary.
12. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .



13. Remove the oxygen sensor wire harnesses from the retainer (1) at the rear of the engine.
14. Note the wire routing for reassembly.



15. Gently pull the bank 1 sensor 1 oxygen sensor (2) wire harness and connector down from the engine compartment.
16. Remove the mechanics wire from the electrical connector.
17. Remove the bank 1 sensor 1 oxygen sensor (2) from the exhaust manifold.

Notice: Refer to Fastener Notice in the Preface section.




1. Install the bank 1 sensor 1 oxygen sensor (2) to the exhaust manifold.

Tighten
Tighten the heated oxygen sensor (HO2S) to 42 N·m (31 lb ft).

2. Attach the mechanics wire to the oxygen sensor electrical connector.
3. Lower the vehicle.
4. Using the mechanics wire, pull the exhaust sensor electrical connector and wire harness upward to the engine compartment.
5. Route both oxygen sensor electrical connectors and wires under the rear section of the supercharger inlet duct. Reposition the duct as necessary.
6. Route both oxygen sensor electrical connectors and wires under the two engine wire harnesses.
7. Install the electrical connector retainer to the electrical connector.
8. Connect both oxygen sensor electrical connectors to the engine wiring harness connectors.



9. Install both oxygen sensor electrical connector assemblies (1,2) to the fuel rail brackets.



10. Connect the PCV foul air tube (1) to the PCV orifice fitting on the right camshaft cover. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .
11. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .



12. Install the oxygen sensor wire harnesses to the retainer (1) at the rear of the engine. Ensure that the wire harnesses are secure and away from hot exhaust components.
13. Lower the vehicle.



14. Install the front section of the supercharger inlet duct assembly. Tighten the duct clamps (2) and secure the duct assembly with the ball studs (1). Refer to Supercharger Inlet Duct Assembly Replacement .
15. Install the engine sight shield. Refer to Intake Manifold Sight Shield Replacement .