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LS short box · 01-03-2022, 06:02 PM

The additional air from the fan can "fool" the mass air flow sensor giving the ECM a false reading.

01-03-2022, 06:02 PM	#2
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 1,961	Re: air flow on intake filer cause rough idle...? The additional air from the fan can "fool" the mass air flow sensor giving the ECM a false reading.