I have a most interesting problem.
After a while of driving, I noticed that when I shifted, the throttle would fall at all. When I am to a stop light, the rpm's stayed and even started climbing. I pulled up on the pedal quick and it still climbed to about ~4000 rpm.
If I put the car into neutral, the rpm's would fall.
If I shift into a higher gear the rpm's would fall the match speed appropriately.
What is going on? Its there some sort of weird idling problem going on?