reving the engine!
hey guys i have a question, yesterday when i came back from work i parked my car and i reved a couple of times to hear how my magnaflow exhaust sounds like when the car is heated up nice. about the third time a reved the engine it sounded like it was going to explode. reved it up to like 3 thousand rpm and all the sudden it revs even more higher witout me hiting the gas pedal, it was hitting like over 5 rpm and going even more, for a couple seconds i didnt no what to do because the rpm wasnt going lower. so i just turned off the car. turned it back on after about 20 seconds still was idleing at around 2.5 and getting even more higher, turned off the car came back in about an hour and it was normal. by the way the car is automatic , i dont get what happened?