Heated Oxygen Sensor (HO2S) Replacement Bank 1 Sensor 1

HEATED OXYGEN SENSOR (HO2S) REPLACEMENT BANK 1 SENSOR 1

REMOVAL PROCEDURE

NOTE: Refer to Oxygen Sensor Notice in Service Precautions.

IMPORTANT:
- Bank 1 on the LH2 engine in this vehicle is the right side of the engine while sitting in the drivers seat.
- Sensor 1 is the sensor closest to the engine, or farthest forward towards 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.
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 Vehicle Lifting.




5. Remove oxygen sensor from the exhaust manifold.

INSTALLATION PROCEDURE




1. Install the oxygen sensor in the exhaust manifold.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the heated oxygen sensor (HO2S) to 42 N.m (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.