× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: P0171,Lean,What have I not checked?
Posted to Technical Discussion Forum on 4/23/2007

[...trimmed text...]

Are the intake air and coolant temp readings normal? I assume you have checked for air leaks after the MAF. How is the PCV valve?

Login to read more.