The air flow meter, also known as the air flow sensor, is installed between the air filter and the intake hose. It is used to detect the intake air volume of the engine cylinder and adjust the fuel ration based on this. It is an important sensor for the EFI engine. one. However, after the car has been used for a long time, the air flow meter will inevitably have some problems. What will happen if the air flow sensor is broken? Let's find out below.
The performance of the air flow meter is broken
If the air flow meter is broken, the car will experience idling jitter, weak acceleration, increased fuel consumption, black smoke from the exhaust pipe, etc., which will affect the performance of the car engine.
To judge whether the air flow meter is damaged, you can unplug the air flow meter. If the car can start normally, the air flow meter is damaged. The common reasons for the bad air flow meter are short circuit, open circuit or abnormal intake signal. These three situations will lead to abnormal fuel injection, resulting in too rich or too lean mixture, resulting in poor engine operation or power drop.
The air flow sensor itself is not easy to be damaged. The damage is generally due to the dirty air intake, which causes dust accumulation and affects its detection accuracy and life. During the daily maintenance process, the air filter needs to be checked regularly. If you often drive in some places with poor environment, it is recommended to shorten the replacement cycle of the air filter to ensure the cleanness of the intake air, which protects the air flow meter, thereby reducing the wear and tear of the engine.
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