High Idle

My 02 SC2 is experiencing some difficulty. Every so often when I stop to shut the car off it idles between 1300-1500rpms. It usually idles around 700-800rpms. Anyone have any ideas?

maybe another case of the tps connector. have you tried to tap the gas and see if it drops? as we are talking about after it has warmed up right?

Yes this is after it has warmed up. I have tried everything, all intake gaskets have been checked and I tried tapping the gas thinking maybe the throttle was stuck. No luck on that though.