I have a rough idle and the car is a little sluggish from a stop on 1991 Oldsmobile Cutlass Ciera

new fuel pump and newer spark plug and wires

Asked by for the 1991 Oldsmobile Cutlass Ciera
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did you repl fuel filter? if so ck catalytic converter for blockage
the fuel filter was changed recently, and the car runs smooth above a idle. The car runs like normal ,could there be a problem with the injectors or could the exhaust be partially blocked that could effect it only at idle and from a stop. the car has 35,000 miles on it , it was only used for church and bingo, could the lack of use created a problem