2001 mazda LX 626 2.5 v6 engine
#1
10-19-2009 | 10:01 PM
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Junior Member
Joined: Oct 2009
Posts: 1
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; 10-20-2009 at 06:19 PM. Reason: More information
#2
10-30-2009 | 09:25 AM
Senior Member
Joined: Mar 2009
Posts: 117
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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