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International Automotive Technicians Network
Re: Diagnostic trick confirm.?
Posted to HD/Fleet Forum on 7/1/2019

Well, in a quick hit and no specs sorta way, its a valid-ish test. BUT, keep in mind that unplugging stuff on modern computer controlled vehicles is not the same as it was 15 or more years ago.

The old test for a MAF was unplug it. car wouldnt start or would... Login to read more.