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V · 08-17-2020, 06:37 PM

Those numbers seem good. I think that's only 8 or 9% variation.

A thread I just read on a chevy truck forum had a similar issue which turned out to be the pin in the harness to the ecm was bent and/or pushed back just enough to not make good contact. Once pin was corrected, truck ran great. Worth taking a look.

08-17-2020, 06:37 PM	#11
V Stalker Join Date: Aug 2004 Posts: 12,077 iTrader: (12)	Those numbers seem good. I think that's only 8 or 9% variation. A thread I just read on a chevy truck forum had a similar issue which turned out to be the pin in the harness to the ecm was bent and/or pushed back just enough to not make good contact. Once pin was corrected, truck ran great. Worth taking a look. Last edited by V; 08-17-2020 at 06:39 PM.