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Re: P0641 VREF 1 low
Posted to Technical Theory Forum on 8/1/2018 2 Replies

Hi Timothy

The code P0641 as read in SI is referring to an open,is it possible you may be running into an intermittent pin fit problem causing an occasional poor or open connection. Still very curious about the outcome of your previous post "No Crank". Login to read more.

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