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unfortunally your question have to many answers .And Its impossible to give you the right answer. First of all . Check engine light come on when your car starting to have a problem and their is so many things that can cause the check engine light to come on. What to do first : # 1 hook up your scanner into your car which will be 0BD II and pull out some code o codes first . and than each code mean what kind of problem you car is experimenting. Good luck buddy.
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