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Re: Code P1391, P0320, Interference on 5 volt reference
Posted to Technical Discussion Forum on 2/13/2020 5 Replies

Louis, You're a lifesaver. I totally disconnected the alternator and it runs great now with no voltage spikes. I ruled that out as the problem, because I didn't think the alternator would spike as high a voltage as it did. Now I'm curious, what do you believe ... Login to read more.

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