my car when started runs rough and chokes, but changed the fuel pump in the tank and the outside fuel filter plus plugs and wires don't know what else to do
running rough when started and dies off on 1993 Pontiac Grand Prix
You need to scan the computer for codes. A 1993 Pontiac has a pretty good computer system for diagnostics and there should be a code or 2. Have a good tech scan it and than tell you what the codes mean. You probably get a Check Engine Light on at times, yes? Other wise you can guess and replace parts ( expensive ) for weeks and not solve the root cause of the problem.