ok so heres the deal. i have a 91 civic lx 4door, the car wont rev above 3500rpm once it gets there its almost like there is a governor stopping it. the engine with the petal to the floor will rev up and stop at 3500 ant the go down to 3000 and back up again. the check engine light is on! this started last night. a friend suggested i disconect the battery and that seemed to fix it untill today. when starting it will crank for a few seconds then start. so whats up.