Traditional Culture Encyclopedia - The 24 Solar Terms - How normal is the data flow of Subaru Outback 2.5 air flowmeter?

How normal is the data flow of Subaru Outback 2.5 air flowmeter?

Under normal circumstances, the data flow of the air flowmeter is about 2.5g/s,

If it is lower than 2.0g/s, it means that there is air leakage in the intake system; if it is higher than 4.0g/s, it means that the intake system has a certain pressure, that is, there is an extra load.

After the general air flow meter is damaged, there will be unstable idle speed, unable to refuel and overtake, emitting black smoke, and even failing to get a taxi in serious cases. If you suspect that there is something wrong with the air flow meter, you can unplug it and try to start the vehicle. If it can be started, it is a problem with the air flow meter. However, it is more correct to measure the data flow of air flow meter.

Common air flow meters include vane type, optical type, Karman vortex type, ultrasonic type, hot wire type, hot film type, etc., which are mainly used to detect the intake air volume or intake air temperature of the engine, and some are also equipped with the function of checking the external atmospheric pressure. The intake air is converted into electrical signal, which is sent to ECM, and then the engine ECM controls the fuel injection quantity, achieving the best combustion effect.