Many auto parts stores, such as AutoZone, will read the codes from your car for free.
If your car is not in restricted performance, the fault is probably in the emissions system or a transient CAN bus error. Typical problems are loose gas cap and the lamda sensors.
If it's a transient error, you'll see the light go off after 3 successful warm up from cold events. I.E, After the car is cold, you start and drive the car to fully warm. You'll see the light go off when it gets warm on the fourth trip.
Thursday, July 30th, 2009 AT 5:06 PM