Question about 2004 Dodge Stratus
I know in older dodge models its located under passenger side seat location plugged into exhaust. Maybe check there
Posted on Dec 08, 2013
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Posted on Jan 02, 2017
SOURCE: location of oxygen sensor
I believe you may have three (3) O2 sensor, (2) of the sensor is on ether side of the exhaust down pipe and some times called up stream O2 sensor, the third O2 sensor know to some as the down stream O2 and is after the Catalytic converter.
The up stream O2 monitors the left and right side banks and sends signals to the ECM to make the adjustments to the injectors to keep the proper air/fuel ratio.
The down stream O2 monitors the catalytic converter and sends signal to the ECM if the catalytic converter has gone bad.
Good luck and hope this helps. If you get it scanned at Auto Zone, they should be able to let you know which O2 has gone bad so as to not change all three. You could always check the wire harness to the down stream O2 for corrosion. Keep me posted
Posted on May 29, 2009
they are in the exhaust system. you have 2 or 3. The upstream sensor(s) read how much oxygen is in the exhaust stream and then reports to the engine computer so it can control fuel mixture.
The downstream O2 sensor just makes sure the system is in control, and if not, it turns on the check engine light.
Just follow the exhast system back from the engine and you will find them, usually with 4 wires and looks like a plug screwed into the exhaust pipe.
Posted on Dec 07, 2009
Which engine do you have? There are at least 2, One upstream and one down stream. The down stream is right after the convertor, and the upstream is on the rear of the motor threaded into the exhaust manifold if you have the 3.3 v6.
Posted on May 20, 2010
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