Heated Oxygen Sensor Replacement - Bank 1 Sensor 1

Heated Oxygen Sensor Replacement - Bank 1 Sensor 1

Removal Procedure

Caution: Refer to Oxygen Sensor Caution (Oxygen Sensor Caution).

Note:
* Bank 1 on the LH2 engine in this vehicle is the right side of the engine while sitting in the driver seat.
* Sensor 1 is the sensor closest to the engine, or farthest forward toward the front of vehicle.
* 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.




1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (Service and Repair).
2. Disconnect the oxygen sensor electrical connector from the engine wiring harness connector at the rear of the right head.
3. Note the wire routing and attachment points for reassembly.
4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).




5. Remove oxygen sensor from the exhaust manifold.

Installation Procedure





Caution: Refer to Fastener Caution (Fastener Caution).

1. Install the heated oxygen sensor (HO2S) in the exhaust manifold and tighten to 42 Nm (31 lb ft).
2. Lower the vehicle.




3. Route and attach the wiring as noted in disassembly.
4. Connect the oxygen sensor electrical connector to the engine wiring harness connector at the rear of the right head.
5. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (Service and Repair).