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Re: 5V reference shorted to B+ through EFI No. 2, no ECM communi
Posted to Technical Discussion Forum on 10/23/2026

Hi Shani, Just my "good ol boy" feeling about what you wrote had me thinking "mercury switch".

And when you say there's been much wiring molestation, it had me thinking that there might be an old diy theft alarm considering the age of the truck. I read '07 T... Login to read more.