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Heated Oxygen Sensor (O2 Sensor) - Pcm Input

Fig 1: Upstream Heated Oxygen Sensor 1/1

Courtesy of CHRYSLER LLC

1 - OXYGEN SENSORS

2 - EXHAUST MANIFOLD

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

Fig 2: Downstream Heated Oxygen Sensor 1/2

Courtesy of CHRYSLER LLC

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