My 2005 Cadillac CTS check engine light comes on sometimes, what could be the problem?.?

  • Thread starter Thread starter lewentceo
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lewentceo

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My car has approximately 60,000 miles. My mechanic put the computer on it but could not get a good read because the check engine light does not stay on. When it does come on, the car shakes a little bit. It suggests it could be fuel injectors. A month ago when this happened, it was the oxygen sensor. What could this new problem be?
 
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