O2 Sensor: Description
The upstream oxygen sensor threads into the outlet flange of the exhaust manifold. See Fig 1 and Fig 2.
Courtesy of DAIMLERCHRYSLER CORP.
Courtesy of DAIMLERCHRYSLER CORP.
The downstream heated oxygen sensor threads into the outlet pipe at the rear of the catalytic convertor. See Fig 3.
Courtesy of DAIMLERCHRYSLER CORP.