I have a 95 T100 with the 4 cyl engine with 150k miles. The problem I'm seeing is with the fuel rail from the codes when the check engine light. If I have to unconnect the battery the code gets reset and the truck has no power in 1st and 2nd gears (engine stuggles to pull with jerking mothing in 1st and 2nd) but runs ok when the light comes on. I've replaced the fuel filter and think I'll have to start on the fuel rail. Any hints?