I posted before about a high idle at startup when the car sits overnight. If the car sits out or in the garage it idles up to 2600-2700 rpms then drops. I took a video the other day, it was 47 degrees out and it revved up. I showed the service dept. and he said there is nothing he can do. Kia has a problem and no fix right now. He said if there is no check engine light there is nothing they are going to do. I have looked around and can't find any help with this. It never did this before and just started. I checked for vac leaks and none, As the car warms up the idle is where it should and its just briefly started to act this way.