engine malfunction light

engine malfunction light has now come on for no apparent reason, all dials on the dashboard are reading ok and car is running great has anybody any idea why this has came on?

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Overfilling the gas tank will also cause the light to come on.
It could be a bad oxygen sesor could be bad.
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The light means there is a trouble code stored in your computer. Any dealer or decent repair shop can read it and tell you what it means. If your car is running well, chances are it's something minor i.e. loose gas cap.
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http://www.autozone.com /
They'll come out to the lot and plug in one of those code readers, for free. Could be any number of things, in my case it was a $25 part, 3 minute install.
John Cairns
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