What is the function of the air flow sensor?

[DeReed]

The function of the air flow sensor is to detect the amount of air intake in the engine, convert the air intake information into an electrical signal through circuit connection, and input it to the ECU for determining the fuel injection amount and ignition timing. The air intake signal obtained by the air flow sensor is the main basis for the ECU to control fuel injection. If it is damaged or its circuit connection fails, the engine's air intake measurement will be inaccurate, causing the ECU to be unable to accurately control the fuel injection amount. The air flow sensor, also known as the air flow meter, is one of the important sensors in an electronically fuel-injected engine. It converts the inhaled air flow into an electrical signal and sends it to the electronic control unit (ECU), serving as one of the basic signals for determining fuel injection. It is a sensor that measures the air flow inhaled by the engine.