× 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: Lean codes P0171/P0174
Posted to Technical Discussion Forum on 11/13/2024

Rob, I can test pressure but I'm Not sure about how to test the flow, and all I have is a fuel pressure test kit.

I replaced the MAF because everyone said a bad MAF can cause lean codes and it's the OE part this car has 138K on the clock & an runs great! I w... Login to read more.