Mechanics

O2 SENSOR

2000 Dodge Durango • V8 4WD Automatic • 131,009 miles

How many o2 sensors does a 2000 dodge durango with a 4.7 have?
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Jessicalorrian
November 17, 2010.



Heated Oxygen Sensor (Downstream) (4.7L) (California) (Left)On outlet end of left catalytic converter.
Heated Oxygen Sensor (Downstream) (4.7L) (California) (Right)On outlet end of right catalytic converter.
Heated Oxygen Sensor (Downstream) (4.7L) (Federal)On outlet end of catalytic converter.
Heated Oxygen Sensor (Downstream) (5.2L)On outlet end of catalytic converter.
Heated Oxygen Sensor (Downstream) (5.9L)On outlet end of catalytic converter.
Heated Oxygen Sensor (Upstream) (4.7L) (California) (Left)On left exhaust downpipe.
Heated Oxygen Sensor (Upstream) (4.7L) (California) (Right)On right exhaust downpipe.
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Rasmataz
Nov 17, 2010.
OXYGEN SENSOR (O2S) - PCM INPUT
The Oxygen Sensors (O2S) are attached to, and protrude into the vehicle exhaust system. Depending on the emission package, the vehicle may use a total of either 2 or 4 sensors.

Non-California Engines
On certain non-California (Federal) emissions packages, 2 sensors are used: upstream (referred to as 1/1) and downstream (referred to as 1/2). With this emission package, 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 Engines
On certain California emissions packages, 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). With this emission package, 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.

Wrenchtech
Nov 17, 2010.

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