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What are the effects of a faulty car mass air flow sensor?

1 Answers
StHenry
09/09/25 3:29am
It can cause unstable idle speed, increased fuel consumption, and poor acceleration. Below is the relevant introduction: Mass Air Flow Sensor: The mass air flow sensor, also known as the air flow meter, is one of the important sensors in an electronic fuel injection engine. It converts the inhaled air flow into an electrical signal and sends it to the Engine Control Unit (ECU), serving as one of the fundamental signals for fuel injection. It is the sensor that measures the air flow entering the engine. Impact on the car: Although a malfunctioning mass air flow sensor may not prevent the engine from starting, it will certainly affect the engine's performance, such as unstable idle speed, poor acceleration, "backfiring" in the intake pipe, and black smoke from the exhaust pipe, while also causing excessive exhaust emissions.
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