Most common cause 2011 Chevy malibu p0171

Question

What is the most common fix for 2011 Chevy malibu code p0171

Answer 1

P0171 fuel sytem lean

What you have is a fuel ration out of balance where air is recieved more that fuel, the common cause are MAF (mass air flow) such as a loose air duct to the throttle body, vacuum leaks creating false air which leans the system out. Low fuel pressure, The most common is MAF