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I have an exhaust backfire and the engine roads.
2003 BMW 330CI
I have an exhaust backfire and the engine roads rough I mean lack of pull no fault codes have changed the o2 sensors ccv spark plugs cat tested. What should I do?
Wednesday, November 28th, 2012 AT 7:50 PM
Are the coils new?
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Monday, December 3rd, 2012 AT 5:31 PM
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