REMOVAL & INSTALLATION

WARNING
The sensor uses a permanently attached pigtail and connector. This pigtail should not be removed from the sensor. Damage or removal of the pigtail or connector could affect the proper operation of the sensor. Keep the electrical connector and louvered end of the sensor clean and free of grease. NEVER use cleaning solvents of any type on the sensor!

NOTE: The oxygen sensor may be difficult to remove when the temperature of the engine is below 120°F (49°C). Excessive force may damage the threads in the exhaust manifold or exhaust pipe.

1. Disconnect the negative battery cable.
2. Remove the exhaust manifold plate, as required.
3. Unplug the electrical harness.
4. Loosen and remove the sensor.

   To install:

5. Coat the threads of the sensor with an anti-seize compound before installation. New sensors are precoated with this compound.

   NOTE: DO NOT use a conventional anti-seize paste. The use of a regular paste may electrically insulate the sensor, rendering it useless. The threads MUST be coated with the proper electrically conductive anti-seize compound.

6. Install the sensor into the exhaust manifold and tighten it 18–25 ft. lbs. (24–34 Nm).
7. Install the exhaust manifold plate, as required. Engage the electrical harness. Connect the negative battery cable.