Dynojet Wide Band 2 is the second generation of Dynojet's popular Wideband Air/Fuel Ratio Monitor kit with digital technology, quickest response in the industry, all. Wideband 2 A stand-alone device, this diagnostics tool can be used on nearly any vehicle from cars to lawnmowers. Though the Wideband 2 doesn’t have a direct way to connect to the ECM, it can still give you data on the air/fuel rat..