All, I had a fuel control module fail. transistor burnt up, truck quit.. I found the module, replaced with unit from salvage yard. While trouble shooting I can not find a schematic that shows this module. Now that I have replaced this module, my truck starts and runs for about 20 seconds. then dies... I watched the gray wire near the fuel pump relay and it stays 12 volts until after it dies. then drops off (oil pressure)... The brown wire with the tracer near the fuel pump control module goes from about 10 volts to nothing right before shutdown. what is actually controlling this? (the transistor that had burnt up gets pretty warm as well) I measured the brown wire to ground and it reads 38 ohms (assumed fuel pump motor)(module removed) fuel pump and wiring assumed good? truck is a 91 chevy K2500 5.7 liter Any and all help would be greatly appreciated. Any place I can find a schematic would be good as well.. Hays manual does not have it. Thanks, not fishing because truck is dead.