An oxygen sensor, also referred to 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 gas within the engine’s combustion chamber. The right air-fuel ratio is vital for making certain that the engine runs effectively and produces the correct quantity of energy.
There are two major varieties of O2 sensors: heated and unheated. Heated O2 sensors are utilized in most fashionable 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 component, in order that they take longer to achieve their working temperature and usually are not as conscious of adjustments within the exhaust gasoline composition.
