what cause a car not to move fast?

1995 OLDSMOBILE ACHIEVA
189,998 MILES
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CREATOR AND JUDGE
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  • 21 POSTS
when i press down on the accelaration pedal, the speed is 15mph; and no faster. what is the problem.

please do not restate my question, but give me an answer to my question. thanks.
Aug 15, 2012 at 1:50 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
sounds like the cat converter is not allowing the motor to breathe

have a back pressure test performed to confirm

Roy
Aug 15, 2012 at 1:53 PM
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