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Re: DTC P0420
Posted to Technical Tips Forum on 11/3/2006 1 Reply

OK, I'm not seeing it I guess. I see (somewhat) how the intrusive cat monitor is working. Did you get a capture of a failure (asking for a lot, I know)? I assume that it is looking at the length of the lean period right after the double-humped event. What I do... Login to read more.

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