Anyone run an 02 extender for the p0420?
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03-25-2005, 04:31 PM
Mountains of Maryland
I used one since I have the TXS high flow cat TBE. This fix has never failed under all driving conditions since I put it in. The set up looks completely stock.
Before that I got the p0420 enough times to carry an OBD2 tool in the trunk.
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