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idle problems

J

Jacob

New member
So i have a 91 grand prix with the 3.1 and when you kick it down hard it does somthing like a hiccup, i have gone through and replaced parts and tried to make it run as smooth as possible but cant figure out what to do to fix this problem any suggestions? it seems to idle a little high and I have tried to adjust the idle speed and richness but i think it needs to be done by computer, i havent had this car long so mabey im just not looking in the right place. Any help is appreciated thanks.
 


I have replaced the throttle position and ignition module which was showing up when the car was scanned by a computer in a shop for problems. it seemed to help it ru smoother when driving but idled the same
 
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