Sensor, Oxygen: Removal: Notes
CAUTION:
Never apply any type of grease to the oxygen sensor electrical connector, or attempt any repair of the sensor wiring harness.
WARNING:
The exhaust manifold, exhaust pipes and catalytic converter become very hot during engine operation. Allow engine to cool before removing oxygen sensor.
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.