My 1991 Grand Prix SE will not idol when it is warmed up. It almost feels like it hesitates a little when you step on the gas after its warmed up. When its cold it runs fine but idol may be a little low. I just replaced the fuel regulator and the plantum gaskets. Also it has been sitting for a while and I just put a full tank of good gas in the tank. I also put some seafoam in the tank to help clean things out. Would you have any ideas on what to look for?
Thank you,
Chad