I drove Tiburon for 3-4 Housrs, an average speed about 160-180km/h The problem is, the gear was on 5th, and I put it on 4th gear to pass by one car, and put back to 5th, and the gear did go in but RPM was still HIGH and made so loud noise from engine, so I double checked if the gear was on 3rd but i didn't think so. So i tried to put it to nutral but still RPM was crazy high and made loud noise. Somehow, I tired to stop the car and finally did stop the car... and checked the enginoil and coolant, everything was OK. But now, I have "Check Engine" Light on.... I don't know if I expained good enough.... Please explain why this has happened!!!