× 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: Negative Voltage on the 02
Posted to Technical Discussion Forum on 1/26/1999

I have one more cause of negative O2 sensor voltage - coolant contamination from blown head gasket. Login to read more.