Question about 2001 Mazda MPV

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Bought a universal O2 sensor for my 2001 Mazda MPV...part is great but new part has one black wire, one gray, one plain white and one with small writing.. bad OEM part has two black wires, one BLUE and one white. Have figured out all but where the blue wire would go. Any clue? The paperwork with the new part has alot of info but says if the color code reference guide does not match to check your OEM manual. I have no OEM manual

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If you are sure that the paper work does not have your combo on it, go to a local parts store that has access to a wiring diagram of your MPV. Use the info on the paper work to identify which wires are ground (usually the 2 white ones are) and then match the remaining two. Often the gray one is the power for the heating element in the sensor. But don't guess at this - it is critical to match the wires properly.

Posted on Nov 18, 2009

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