× 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: 92 F150 fail emissions, code 173
Posted to Technical Discussion Forum on 1/27/2003

When ever I have O2 voltage problems I check the orange ground wire at the back of the engine,usally connected to the back of the head. Login to read more.