I have an exhaust backfire and the engine roads.

Tiny
ANONYMOUS
  • 2003 BMW 330CI
  • 73,000 MILES

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

1 Reply

Tiny
DR. HAGERTY
  • EXPERT
  • 9,728 POSTS

Are the coils new?

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Monday, December 3rd, 2012 AT 5:31 PM

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