Installation - Upstream 1/1 - 2.4L

The engines uses two heated oxygen sensors.

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.
2. Install sensor and tighten to 27 N.m (20 ft. lbs.). See Figure.
3. Connect the electrical connector for the O2 sensor and install onto bracket.
4. Lower vehicle.
5. Connect the negative battery cable.