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· Home Owner....
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Tea81 said:
well its 01 durango 4.7 i only see two o2 sensor one before and one after the CAT. I checked the wireing and plugs there all plugged in and the wires are away from the pipe. i really have no idea of what it could be

you *should* also have one in each down pipe that connects to the headers. double check as they will be before the pre-cats, if ya havethem.
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