An oxygen sensor, often known as an O2 sensor, is a tool that measures the quantity of oxygen within the exhaust gases of an inner combustion engine. This info is utilized by the engine’s digital management unit (ECU) to regulate the air-fuel ratio, which is the ratio of air to gasoline within the engine’s combustion chamber. The proper air-fuel ratio is necessary for guaranteeing that the engine runs effectively and produces the right amount of energy.
There are two primary kinds of O2 sensors: heated and unheated. Heated O2 sensors are utilized in most trendy autos. They’re heated to a excessive temperature, which permits them to achieve their working temperature shortly and to reply shortly to adjustments within the exhaust gasoline composition. Unheated O2 sensors are utilized in older autos. They don’t have a heating factor, so that they take longer to achieve their working temperature and aren’t as conscious of adjustments within the exhaust gasoline composition.