My engine light came on. The car started (missing), kinda jerking. It was worse in lower gears. I would parked it overnight and tried again the next day, drove fine. I took it to a mechanic. He replaced the idle control valve, (the code suggested replacing it). The engine turned off, and it drove fine.......for a day! I took it back three times! Do you have any idea what the problem is ? The light is on now and it's driving fine. After 4 or 5 days the problem starts again. I parked it overnight and I've been driving it ever since...going on a the third day now.