Air Fuel Ratio Sensors, How Do They Work? Plus Testing - Part 1: Domestics

Air fuel ratio (a/f ratio), wideband, and standard oxygen sensors look very similar. Looks is where their similarity ends. Air fuel ratio and wideband sensors operation and testing are drastically different than standard 02 sensors. In this class, we cover domestic a/f ratio sensors. Tackling diagnosis and sharing known good information. Enjoy! https://ngksparkplugs.com/en/ Tools used: https://www.milwaukeetool.com/ https://www.picoauto.com/