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May 9, 2011, 6:50 AM

Post #1 of 2 (2053 views)
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I have a 2000 Ford Contour. The engine light is staying on. I did a code search and displayed code PO420 catalyst efficiency censers. Where are these censers located?

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Hammer Time
Ultimate Carjunky / Moderator
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May 9, 2011, 7:25 AM

Post #2 of 2 (2047 views)
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Not sure why you're expecting to change a sensor here but that code is for catalyst efficiency and that almost always means a bad Catalytic Converter on bank 1


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