What is a MAF sensor?
MAF sensor (Mass airflow sensor) plays a very important role in automotive engines. It acts like the engine’s “breather”, monitoring and measuring the mass airflow into the engine.
By sensing and converting changes in the intake air volume, the mass airflow sensor converts these data into electrical signals and transmits them to the vehicle’s electronic control unit (ECU). The ECU adjusts the amount of fuel injection according to the received signal to ensure the normal operation of the engine and provide the best combustion effect.
MAF Sensor Location
The mass airflow sensor is usually located on the intake duct of the engine because it needs to directly sense the air entering the engine. In some models, the mass airflow sensor may be located upstream of the intake pipe, which can more accurately measure the flow of air. Regardless of location, the mass airflow sensor must be in direct contact with the mass airflow to get an accurate reading.
MAF Sensor Function
When the mass airflow sensor is working properly, it can accurately measure the amount of air entering the engine and transmit this data to the ECU. The ECU adjusts the fuel injection amount according to this information to meet the needs of different working conditions. This contributes to the combustion efficiency and performance of the engine, while also helping to reduce exhaust emissions and save fuel.
