I was directed to an article posted by Mopar1973Man that was on a different forum. it concerns a P1690 engine code. it says that AC noise from my lift pump can also cause this. where does alternating current come frome on a direct current vehicle. The alternator? And why does it manifest itself in the fuel tranfer pump?

Link to the article, or more info please!!

Link to the article, or more info please!!

I dont know how to give a link to squat on a computer.(I really hate these things). I have a thread posted on cumminsforum.com under ECM failing? If you can find that thred (my name there is also davisdeezle) you will find that link in one of the replies.

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I dont know how to give a link to squat on a computer.(I really hate these things). I have a thread posted on cumminsforum.com under ECM failing? If you can find that thred (my name there is also davisdeezle) you will find that link in one of the replies.

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[TD=class: alt2, width: 175]TexasTurbo

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[TD=class: alt1]Mopar1973Man's Dodge Cummins Articles - P1690 VP44 CKP Sensor Does Not Agree With ECM CKP Sensor

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