Ive got a truck in the shop thats turned into a real mess. It came in needing an injector. However after the injector swap, it now has another gremlin that has come out. When you turn the key on the injectors buzz, wts light comes on just as it should but when you try and crank the truck over the starter grinds, relays click and buzz.... symptoms you'd usually see if your batteries were too dead. Now, if you go over to the passenger side fender and take teh start wire apart and jump it to the battery the truck fires right off and runs fine. However when you drive it the trans acts like its not starting in 1st, it doesnt shift right, tow haul wont engage, and the converter wont lock. I can run a buzz and balance test, pull codes, but i cant do koeo or koer tests because it has egr ****** and no tune. I tried to dump a tune on to it and the tuner comes back with a communication error.
Things ive checked- battery cable connections, all harness connections on drivers side inner fender, pcm connectors, FICM connectors, all under hood grounds, under dash fuses. Im about to start tearing stuff apart in the cab so i can check the grounds inside. Basically im working down the ground side of the wiring diagrams, next will be the power side. anyone have any other ideas? Its gotta be something stupid simple, it wasnt doing this before i changed the injector.
Things ive checked- battery cable connections, all harness connections on drivers side inner fender, pcm connectors, FICM connectors, all under hood grounds, under dash fuses. Im about to start tearing stuff apart in the cab so i can check the grounds inside. Basically im working down the ground side of the wiring diagrams, next will be the power side. anyone have any other ideas? Its gotta be something stupid simple, it wasnt doing this before i changed the injector.