1995 Mitsubishi Eclipse high idle

Engine Performance problem
1995 Mitsubishi Eclipse 4 cyl All Wheel Drive Manual

my car has been having an idleing problem. When the car is cold its fine but once it gets warmed up it will idle high sometimes up to 4000 rpms the more stop and go the higher the idle is. Sometimes I can tap the throttle to make it go down. Also it is so bad the car will pull itself while in any gear 1-5. And the problem doesnt throw anycheck engine lights. Ive checked vacumm lines and a few other things so any advice would be good keep in mind the car is a turbo