× 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: Understanding Fuel Trims
Posted to Technical Discussion Forum on 12/10/2009 8 Replies

19% won't flag a DTC or MIL on GM and Ford. A combined total ST & LT fuel trim of 25% is required to do either. Login to read more.

8 Replies Received (View Replies)