Oxygen Sensor - Installation

INSTALLATION

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

The engine is equipped with four heated oxygen sensors:

- The right upstream oxygen sensor is referred to as the 1/1 sensor.
- The right downstream oxygen sensor is referred to as the 1/2 sensor.
- The left upstream oxygen sensor is referred to as the 2/1 sensor.
- The left downstream oxygen sensor is referred to as the 2/2 sensor.

Right Oxygen Sensor(s)





1. 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 additional coating. Do Not add any additional anti-seize compound to the threads of a new oxygen sensor.
2. Install the right upstream 1/1 oxygen sensor (1) or the right downstream 1/2 oxygen sensor (2) and tighten to 50 Nm (37 ft. lbs.).
3. Connect the oxygen sensor electrical connector.
4. Install the right front wheelhouse inner splash shield Splash Shield - Installation.
5. Lower the vehicle.
6. Connect the negative battery cable and tighten nut to 5 Nm (45 in. lbs.).

Left Oxygen Sensor(s)





1. 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 additional coating. Do Not add any additional anti-seize compound to the threads of a new oxygen sensor.
2. Install the left upstream 2/1 oxygen sensor (1) or the left downstream 2/2 oxygen sensor (2) and tighten to 50 Nm (37 ft. lbs.).
3. Connect the oxygen sensor electrical connector.
4. Install the left front wheelhouse inner splash shield Splash Shield - Installation.
5. Lower the vehicle.
6. Connect the negative battery cable and tighten nut to 5 Nm (45 in. lbs.).