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I have a 1991 Chevrolet Camaro RS, and I had the same problem. If the check engine light comes on, it could be the distributor cap and rotor. As for the stopping and sputtering of RPM's, it could be the fuel pump. I replaced my distributor cap and rotor and got a new fuel pump, and my car is working amazingly. Hasn't stalled or sputtered yet! Try that

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18y ago

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