This is a completely stock 2.0 L with no recent engine work. Twice in two weeks while driving the car the engine rpms have gone out of control with no codes. While driving at 40 the engine rpms started swinging up and down from 2500 to 1500 no foot on the gas but the car was trying to accelerate and decelerate with the rpms. Also after that it stopped cycling the revs but it had a few periods of the idling sticking at 2200 rpms with car in neutral. The second time two weeks later driving at 25 mph and at idle the rpms would just go up and down continuously from about 2500 to 1200 and would not stop until I shut it off and restarted again no codes. I'm surprised no codes as I thought all throttle related sensors like the gas pedal switch had redundant sensors in them to inform the CPU there is an issue. This is also an intermittent problem two failures now in two weeks now. Car runs perfect otherwise. Ideas suggestions please besides giving into the dealer which will be real fun on the wallet since its a very intermittent issue.
Thanks
Thanks