chevy obd codes

2001 CHEVROLET SILVERADO
88,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
RAWHILES
  • MEMBER
  • 1 POST
trouble code 171 and 174
Dec 16, 2010 at 6:21 PM
Advertisement
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 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.
Dec 16, 2010 at 6:22 PM