Just a thought--if you have a relatively newer vehicle (2000 +), try removing your gas cap, then putting it back on and screwing it on until it clicks at least 5 times. Older vehicles, check and see if the washer/seal around the inside of the gas cap is still in good condition, otherwise buy a new gas cap.
I can't tell you the number of people I know, including myself, who have paid to have a "check engine" light investigated and "fixed" only to discover it was that the gas cap wasn't on tight enough This is particularly common on Hyundais, Nissans, and Fords.
The other option for turning off a check engine light that didn't shut off after a problem was fixed is to unplug both battery terminals, let it sit for about 20 minutes, then replace them. You'll have to reset your clock and radio stations though.
Posts: 3065 | Location: A place with palm trees and sunshine! | Registered: 03-17-03
I did a search and found something but it didn't work on my car. Maybe it will on yours.
Take the key out of ignition, put key back in and turn it to first notch while holding down the odometer buttom. The light will blink and go solid. Turn car off and back on. The check engine light is supposed to go off then.
Turn the key to the "on" position (the furthest forward before you actually engage the starter). Pump the gas pedal 3 times, quickly and completely. Not sure if it'll work in your car, but I just changed the oil in my work truck and that did the trick for me. And if it doesn't work, no harm done to your car.
Take off your fuse panel and there should be a little button there. Press the button down a few times and various lights on your dashboard will turn on one at a time. When it gets to the check engine light, keep it blinking until it shuts off. (you should have to push the button in twice) That should do it. This is how they "reset" the change oil light on cars.
Another option is to have them reset the button when you get your oil changed since all cars have a different way to reset the light.
Easiest way: What Mx2 said. You could always just unhook the battery for a few minutes and that should clear the computer. If there is a problem, the light will go back on. (it could just be a maintenance reminder)
Posts: 5305 | Location: The Motor City | Registered: 06-03-02
Dixie and Cincy's advice is usually what you have to do for the mainenance required light. The check engine light, I believe, usually requires connecting a couple wires for a moment (it does on my car), or, as Mx2 suggested, disconnecting the battery. If your owners manual doesn't have the instructions, there are books available, typically for about $15 (I think), that include instruction on this for each specific model - you may be able to find one at the library.
On the "maintenance required" yellow light that comes on in my Honda, there is a little opening right by the light. I can push something like a pencil into it and turn off that light.
If you have less than 100,000 miles on the car the manufacturer is still responsible for any smog equipment failures.
You have OBD II on your car. You can get a "code checker" at about any parts store which is universal and will plug into any car built after OBD II standards were required.