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Check Engine Light S80 2001

posted by  someone claiming to be Robert on  Wed Sep 12 10:39 CST 2007 [RELATED]

Check Engine Light came on (I think) after a hard left turn accelerating faster than I normally drive. Light went off after a couple of weeks. One week later I replaced the air filter just before taking the car for the Illinois EPA test, which it passed. I did not notice whether or not the state inspector touched the gas cap. Coming home from the test, I noticed the Check Engine light on again. Approximately two miles between replacement of the air filter and the test.
My question is: could the new air filter have done it, or did the EPA test do it?
I am a competent mechanic on older cars, but this OBD is new to me. How can I diagnose codes and shut off the idiot light?






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New Check Engine Light [S80][2001]
posted by  someone claiming to be Robert  on Wed Sep 12 10:39 CST 2007 >


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