My car started reving it self up really high while im idling/in gear.. Last night i was at a drive thru and it did it once. the car was just in idle and all of a sudden it did it, then the car was fine the rest of the night. i got up early this morning and drove maybe 40 miles north and it ran fine the whole time then leaving the place i was at i was able to keep my foot off of the gas and the car went like 10 mph by it self, which is really weird, usually i have to baby it when im going slow. then i stop by safeway and when i turn the car on again it revs up really high ( i dont have a tach so i dont know how high) for 10 seconds or so then laid off and when i put it in gear to leave the parking lot i had to hold the brake down instead of pushing the gas... oh yeah, then the check engine light came on. about 30 miles down the road heading home all of a sudden it kinda kicks, like when you slam the gas hard it jumps to catch up or w/e but not quite so hard, then went like that for a few seconds, dropped off, then the light went off. then it did it 2x more then the light came back on. I got home, turned the car off and on then it reved way up again...it does it ever time i turn it on.. any ideas?
