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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
.