I HAVE AN EXHAUST BACKFIRE AND THE ENGINE ROADS ...

2003 BMW 330ci

Tiny

Anonymous

November, 28, 2012 AT 7:50 PM

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?

FOUND 6 RELATED QUESTIONS

1 Answer

Tiny

Dr. Hagerty

December, 3, 2012 AT 5:31 PM

Are the coils new?

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