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Q: gas cap causing engine lite on 1999 Jaguar XK8

will engine lite go off by itself after i replace my gas cap or do i need to have it reset i was told it was my gas cap
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If you are sure that the gas cap is the real problem, then yes after 2-3 days the light should go off. Use a new Jaguar gas cap. Also, there are thousands of codes for your Check Engine Light on your Jag, so if the light does not go out, you need to have a Shop scan your computer to see what the real problem is.
here is link to an article about Check Engine lights.

here are some shops
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