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**kev2809** · 08-25-2022, 10:20 AM

ok, were getting some where now. i pulled back the harness a bit and traced that pink pcm wire. i have it tied into my accessory plug and branches to the 12 volt key in that plug (for the check engine light). i posted a picture of my diagram i made a few months back. plug 2 and 5 are getting 12 volt hot all the time. 5 is wired to the TCC for the brake switch. plug 2 is "suppossed" to be my 12 volt key tap in. i traced it back to my 12 volt key strip i made inside the truck and terminal feeding it is 12 volt constant. im guessing not all "Accessory" fuses are keyed 12 volt? i moved it another "Accessory" fuse and that one is keyed. so everything is working right now..even the fuel pump kick on. is there a better way to plug into this fuse spot? i used a male blade and plugged it in, but if you barely tug it, it will come out...very annoying.

but thanks for all yalls help, hopefully i can get it to start before the weekend for the first time!

08-25-2022, 10:20 AM	#33
kev2809 low n' slo Join Date: Mar 2009 Location: rosenberg, texas Posts: 5,194	Re: No power to the fuel pump ok, were getting some where now. i pulled back the harness a bit and traced that pink pcm wire. i have it tied into my accessory plug and branches to the 12 volt key in that plug (for the check engine light). i posted a picture of my diagram i made a few months back. plug 2 and 5 are getting 12 volt hot all the time. 5 is wired to the TCC for the brake switch. plug 2 is "suppossed" to be my 12 volt key tap in. i traced it back to my 12 volt key strip i made inside the truck and terminal feeding it is 12 volt constant. im guessing not all "Accessory" fuses are keyed 12 volt? i moved it another "Accessory" fuse and that one is keyed. so everything is working right now..even the fuel pump kick on. is there a better way to plug into this fuse spot? i used a male blade and plugged it in, but if you barely tug it, it will come out...very annoying. but thanks for all yalls help, hopefully i can get it to start before the weekend for the first time! Attached Images __________________ 67 1/2 ton Suburban - Project DRGNWGN. Build thread -_--_--_ _________ _--_-_ -/____\|__\|__\__ ,.,,,.,.,,.,\|_O _______ O_]