Oxygen Sensor: Diagrams

Oxygen Sensor 1/1 Upstream (California):

Oxygen Sensor 1/1 Upstream (Federal/CNG):

Oxygen Sensor 1/2 Downstream (California):

Oxygen Sensor 1/2 Downstream (Federal):

Oxygen Sensor 2/1 Upstream (California):

Oxygen Sensor 2/2 Downstream (California):