Not up on the N/A models, that much. I would, just for the hell of it, do a throttle reset. Throttle position sensor, TPS, can do strange things from time to time. But, usually a high idle would be associated with the MAF sensor I would think on the N/A version. Just remove the engine cover, and make sure all the hoses are in place. This can cause a high idle if one of the vacuum hoses are off as well. Just some things to look at or try. There are some threads on here about the MAF sensor, throttle reset, and vacuum leaks. Good luck.