Sensor, Oxygen: Installation: Upstream

If reinstalling the original oxygen sensor, coat the sensor threads with an anti-seize compound such as Loctite 771- 64 or equivalent. New sensors have compound on the threads and do not require an additional coating. Do Not add any additional anti-seize compound to the threads of a new oxygen sensor. 

Courtesy of CHRYSLER GROUP, LLC

1. Install the oxygen sensor (3) into the exhaust manifold and tighten to the proper torque specification. Refer to TORQUE SPECIFICATIONS  .
   CAUTION:

   Never apply any type of grease to the oxygen sensor electrical connector, or attempt any repair of the sensor wiring harness.

2. Connect the oxygen sensor wire harness connector (1) and secure the wire harness in the retainer (2).
3. Remove support and lower the vehicle.
4. Connect the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), connect the IBS connector.