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Re: GM P0401 ' EGR SYSTEM FLOW INSUFFICIENT' QUESTION
Posted to Technical Discussion Forum on 3/2/2007

Hey guys here is some data I gathered including the original freeze frame data when the code originally set, like I said the code still has not set and I've run now 8 consecutive passing egr monitors with about 8-11 egr flow counters being run per egr monitor.... Login to read more.