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Re: 1997 Chevrolet Blazer, failed NOx @ 5015
Posted to Emissions Forum on 1/28/2014 48 Replies

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I have said for 15 years not to use ASM data for diagnosis. I even brought it up a few weeks ago to Kelly Garvey when we were discussing the iATN lambda calculator.

The ASM test is not a diagnostic... Login to read more.

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