Durango 2WD V8-5.7L VIN 2 (2007)
Oxygen Sensor: Locations
Sensor - Oxygen-Left Rear
Federal Emission Packages :
Refer to graphic for typical O2S (oxygen sensor) locations if equipped with two oxygen sensors.
Two sensors are used: upstream (referred to as 1/1) and downstream (referred to as 1/2).
The upstream sensor (1/1) is located just before the main catalytic convertor.
The downstream sensor (1/2) is located just after the main catalytic convertor.
California Emission Packages:
Refer to graphic for typical O2S (oxygen sensor) locations if equipped with four oxygen sensors.
4 sensors are used: 2 upstream (referred to as 1/1 and 2/1) and 2 downstream (referred to as 1/2 and 2/2).
The right upstream sensor (2/1) is located in the right exhaust downpipe just before the mini-catalytic convertor.
The left upstream sensor (1/1) is located in the left exhaust downpipe just before the mini-catalytic convertor.
The right downstream sensor (2/2) is located in the right exhaust downpipe just after the mini-catalytic convertor, and before the main catalytic
convertor.
The left downstream sensor (1/2) is located in the left exhaust downpipe just after the mini-catalytic convertor, and before the main catalytic convertor.
