O2 Sensor

Fig 1: Upstream Oxygen Sensor

Courtesy of DAIMLERCHRYSLER CORPORATION

Fig 2: Right Rear Oxygen Sensor

Courtesy of DAIMLERCHRYSLER CORPORATION

Fig 3: Left Rear Oxygen Sensor

Courtesy of DAIMLERCHRYSLER CORPORATION

The upstream O2 sensors are in exhaust manifolds. The downstream O2 sensor are in exhaust system near rear axle. See Fig 1 -Fig 3 .