× 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: Diagnosing catalyst efficiency with O2 Sensor Data
Posted to Technical Discussion Forum on 9/21/2012

Since cats have to fail several times to post a code, this run would be inconclusive as near as I can see. Switch ratios are what is usually used by the monitor to test cats, I would say that this is a fail, but to repeat this over several runs, during the tes... Login to read more.