What are the symptoms of a faulty mass air flow sensor?

[VanLukas]

The symptoms of a faulty mass air flow sensor include: 1. Decreased engine power; 2. Difficulty starting the engine and unstable operation; 3. Unstable idle speed; 4. Poor acceleration; 5. Intake manifold backfire; 6. Black smoke from the exhaust pipe. The causes of a faulty mass air flow sensor are: 1. Short circuit or open circuit in the wiring; 2. Abnormal air intake signal. The mass 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 as one of the basic signals for fuel injection. It is a sensor that measures the air flow entering the engine.