it just had a tune up, the check engine lite comes on only when the problem happens then goes away. we know it is running lean but dont know what to fix to stop it from runnung lean
Mar 23, 2012 at 12:40 AM
RASMATAZ
CAR REPAIR CONTRIBUTOR
75,992 POSTS
Lean fuel condition could be caused by one of the following below:
1.Vacuum leaks
2.EGR and PCV valve.
3.Low fuel pressure.
4.Dirty fuel injectors.
5.Mass Air Flow Sensor.
6.Oxygen Sensor.
Mar 23, 2012 at 4:28 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.