So I took my sled down to the shop the other day because it was only idling at 950 rpms. They checked it and said the throttle position sensor was off and they adjusted it and now it idles at 3500 rpm. So do I turn the idle screw down to what it is suppose to be or have them try it again? I just was not sure if I turn the idle screw if it will mess with the TPS and i will have to take to them again??