Heated Oxygen Sensor Replacement Bank 1 Sensor 1

Notice: 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.

Important: 

Tools Required

J 39194 Oxygen Sensor Wrench

1. Turn OFF the ignition.



2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.
3. Remove the HO2S retaining clip (4) from the bracket (1).
4. Disconnect the HO2S electrical connector tab (3) from the HO2S 1 retaining clip (4).
5. Remove the HO2S electrical connector retainer.

Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

6. Raise and support the vehicle.



7. Use the J 39194 in order to carefully remove the rear oxygen sensor (1) from the rear exhaust manifold .

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

1. Install the rear oxygen sensor (1) in the rear exhaust manifold.

Tighten
Tighten the sensor to 41 N·m (30 lb ft).




2. Connect the electrical connector (3) to the HO2S (4).
3. Connect the electrical connector tab (4) to the bracket (1).
4. Install the HO2S electrical connector retainer.
5. Lower the vehicle.
6. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.

Heated Oxygen Sensor Replacement Bank 1 Sensor 2

1. Turn OFF the ignition.

Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

2. Raise and support the vehicle.



3. Remove the splash shield (3).
4. Disconnect the electrical connector retaining tab (1) from the HO2S electrical connector (2).
5. Disconnect the oxygen sensor connector (4) from the HO2S electrical connector (2).

Important: The heated oxygen sensor may be difficult to remove when engine temperature is below 48°C (120°F). Excessive force may damage threads in exhaust manifold or exhaust pipe.

6. Use the J 39194 in order to remove the oxygen sensor (4) from the exhaust pipe .

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.




1. Install the oxygen sensor (4) in the exhaust pipe.

Tighten
Tighten the sensor to 41 N·m (30 lb ft).

2. Connect the electrical connector (2) to the HO2S (4).
3. Connect the HO2S electrical connector retaining tab (1).
4. Install the front splash shield (3).
5. Lower the vehicle.