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Q:

running rough when started and dies off on 1993 Pontiac Grand Prix

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
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
(1) Answer
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.