AFR-Volts Chart in Fuel Injection Posted February 9, 2019 · Edited February 9, 2019 by TomoHawk Thanks, but that guy's data doesn't make sense, and he says it's not correct, especially for lambda=1. He gives 0.33V for lambda=1.0 but it should be about .45V . Then says he used a wide-band controller to get measurements from a narrow-band sensor? He also needs to change the way he explains the theory of the sensor, as he says the fuel "pulls oxygen through" for both rich and lean conditions. That's why I passed this page the first time I viewed it.