Truck is a project that runs and drives but is not licensed and insured so it never leaves my property. Just in and out of my garage and it ALWAYS runs great. But I took a tool around my neighborhood and then shut it off in my driveway. Ten min later a crank no start. I had to floor it and it started and ran terrible. Revving it up it would hit on all 8 but at idle was very rough and missing. Bought the fuel psi gauge and it shows my psi. Days later I went out to pull the electrical connector from each injector one at a time to observe fuel injector function, but the truck is running smooth and proper currently. The fuel psi reading on the gauge is the same at 38 whether it runs poorly of properly. I did buy a new Delphi pump module assembly as I thought I may need to replace the current unit. I have not installed the new unit. I'd like to know the exact psi spec this model requires and I'd like to probe the power connection at the pump to check voltage. Its OBD 1 so codes are checked via counting the blinks. Engine is all stock with no modifications whatsoever.
Last edited by 2boltmain; 10/10/24 05:17 AM.
