Hello. I have a question. I have an 04 Civic Lx and the Check Engine Light came on. The car was driving perfect before it came on. It seems like when the light is on, the car has issues switching gears. I am pretty sure that the gas cap is on tightly. The light shut off for about 10 minutes, and was driving fine, until the light went right back on. Could there be something seriously wrong with the car? Or could that light also indicate that the car needs maintanence? I am a little over due for a tune-up. Can anyone help me out?
Thanks, Elizabeth