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Re: Code P1391, P0320, Interference on 5 volt reference
Posted to Technical Discussion Forum on 2/13/2020 1 Reply


Chrysler's can have issues with ignition components spiking the ecm. 60 volts suggests to me that some sort of coil or solenoid would have to be involved to create that kind of voltage. From experience you more than likely you have a tune parts issue c... Login to read more.

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