Oxygen Sensor

It is a sensor that measures the amount of oxygen in the exhaust gases leaving the engine.
A car Oxygen Sensor is important because it helps the engine control unit optimize fuel injection and ignition timing for better engine performance and reduced emissions.
The car Oxygen Sensor is used when the engine is running and has reached normal operating temperature. A vehicle can have 1 or more Oxygen Sensors.
The car Oxygen Sensor is located in the exhaust system, near the exhaust manifold or catalytic converter.
A car Oxygen Sensor works by measuring the oxygen content in the exhaust and sending a signal to the engine control unit, which uses the information to adjust fuel injection and ignition timing.