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Search results

  1. 7

    94 lift pump oem wiring questions

    Thanks for the link. After reading up some more it appears that there is a fuse in fuse box that feeds power during engine crank to the fuse and oem fuel pump relay on firewall. And that powers the lift pump on my 94 only during cranking, after start up then the ops feeds power to lift pump. Now...
  2. 7

    94 lift pump oem wiring questions

    1994 k2500 6.5td I was doing some research on lift pump relay mods when I got to wondering about the oem fuel pump relay and fuse on the fire wall. Where do these come into play? Correct me if I'm wrong, the oil pressure switch is what directly feeds the lift pump with 12v. So the oem relay...
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