2009 HONDA CIVIC
62,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
fuel system runs lean. what is cause
Dec 17, 2012 at 9:50 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
It could be several things. The most common problem is a vacuum leak which allows unmetered into the engine.
Dec 18, 2012 at 2:05 AM