Posts Tagged: air fuel ratio sensor

Oxygen sensor and air fuel ratio sensor — The differences

Learn the difference between an oxygen sensor and an Air fuel ratio sensor An oxygen sensor (O2) and an air fuel ratio sensor (AFR) are both used to monitor the exhaust gases of a vehicle and communicate this data to the vehicle’s ECM to optimize the fuel and air mixture coming into the engine’s combustion chamber. However, they arrive at their findings using different methods How an oxygen sensor works A traditional narrow-band O2 sensor contains a zirconia/ceramic “thimble” contained in a stainless-steel shell. The inner and outer surfaces of … Read More