emmision

2006 CHEVROLET AVEO
4 CYL • 2WD • AUTOMATIC
Avatar
SLY
  • MEMBER
  • 1 POST
my bring out black smokes and consumes fuel
Feb 15, 2011 at 3:24 PM
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.
Advertisement
Avatar
RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
Probable causes of an engine running rich are as follows:

1.Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system
Feb 15, 2011 at 3:26 PM
Advertisement