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Old 02-07-2012, 02:49 PM   #1
GAGT - Newbie
AKA: Anthony MEyers
Join Date: Feb 2012
Location: Lockport, Illinois
Posts: 8
Vehicle: 1997 Grand Am GT Coupe
xxallonblack Gettin' there
Exclamation '97 Grand Am GT Acceleration Issues

Hey there guys, I have a 1997 Grand Am GT Coupe with around 153,000 miles on it. We just replaced the Throttle position sensor, Cam shaft position sensor, spark plugs and wires and I am still getting a cylinder misfire error when looking at the check engine log. When accelerating, my car will not pick up and go, but slowly accelerate.

Also, at around 55 mph, I will have my gas pedal steady or even using my cruise control.. but the RPM's will drop from around 2,000 down to 1,500. I will let off the gas and it will jump back up to 2,000 RPM's. Has anyone ever experienced something like this?? It was idling around 3,500 to 4,000 RPM until we changed the spark plugs and now it idles fine. Please let me know if you have any other questions about the car for diagnostic purposes!!!
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