Upstream 1/1, 2/1 Heated Oxygen Sensor

Fig 1: 2/1, 2/2, O2 Sensors

Courtesy of CHRYSLER LLC

1 - Upstream O2 Sensor

2 - Downstream O2 Sensor

1. Raise and support vehicle.
2. Disconnect heated oxygen sensor electrical connector.
3. Remove sensor using an oxygen sensor crow foot wrench.