Installation - 1/2 Downstream

The downstream heated oxygen sensor threads into the exhaust pipe behind the catalytic convertor. See Figure.

1. After removing the sensor, the exhaust manifold threads must be cleaned with an 18 mm X 1.5 + 6E tap. If reusing the original 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. Tighten the sensor to 28 N.m (20 ft. lbs.) torque.
2. Connect sensor electrical harness to clips along body.
3. Connect electrical connector to sensor.
4. Lower vehicle.
5. Install the negative battery cable.
6. Install the air cleaner lid and makeup air hose.