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What is difference the front o2 sensor and the rear o2 sensor rear?

In: Toyota, Oxygen Sensors, Nissan Maxima [Edit categories]

Answer:

The front sensor is reading wether your air/fuel mixture is correct and computer makes adjustments according to a rich or lean reading from o2 sensor. The rear sensor is reading what comes out from the cat/converter to see if converter is doing is job in removing pollutants.

First answer by ID1209675846. Last edit by ID1209675846. Question popularity: 3 [recommend question].

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