91 b2600i
+1y
Ok I jus rebuilt the motor again, timing was dead on, had rust in tank, so I replaced tank, pump sock, filter and plugs. It runs but has a miss at idle and when I'm keeping constant speed of w.e. mph it spudders real bad loss of power. I mash the gas and runs like a champ. Now I do have my maf bolted down at an angle idk if that will affect it. My dad says timing, my friend says ignition coil and I think it might be my tps, Injectors or maybe q vac leak it something but I don't have emissions on the truck everything is capped off. I know there is a wire under dash that turns off the cel so idk any help would be nice thanks.