O2 Sensor: Description

Fig 1: Upstream Heated Oxygen Sensor 1/1

Courtesy of DAIMLERCHRYSLER CORP.

The upstream oxygen sensor threads into the outlet flange of the exhaust manifold.

Fig 2: Downstream Heated Oxygen Sensor 1/2

Courtesy of DAIMLERCHRYSLER CORP.

The downstream heated oxygen sensor threads into the system depending on emission package.