2001 mazda LX 626 2.5 v6 engine
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2001 mazda LX 626 2.5 v6- engine code PO431 ?
Just bought for my daughter. check engine light is on reads code PO431 which sensor is bad and exactly where is it located.
Thanks Don Cook
Thanks Don Cook
Last edited by doncook; Oct 20, 2009 at 05:19 PM. Reason: More information
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Joined: Mar 2009
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From: The South
P0431 Code
Why do you assume that a sensor is bad? You most likely have a bad catalytic converter. P0431 indicates poor performance on the bank 2 cat. It could be a bad O2 sensor -- but it's probably the converter. 
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