Acceleration might require a rich AFR, up to 12:1, while cruising requires a leaner AFR, sometimes as low as 22:1. The ideal AFR is 14.7:1 (14.7 pounds of air to 1.0 pounds of gasoline), but real-world AFR varies. Measuring air mass is critical in calculating how much fuel to add to achieve the correct air-fuel ratio (AFR). The mass air flow sensor measures the air mass flowing into the engine intake. If your vehicle is having performance issues, you may be experiencing one of the symptoms of a bad mass air flow sensor. Several sensors and actuators come into play, such as the mass air fuel (MAF) sensor and fuel injectors, and just as with any other car part, these sensors and actuators can degrade over time. It is possible for the wires in the connector to break, causing the mass airflow sensor to not work.Modern electronic engine controls calculate the correct quantity of fuel for a given situation. When doing this job, the mechanic may recommend changing the electrical connector that connects the mass airflow sensor to the car's computer system. If the vacuum hoses are leaking, it will give the same error code as mass airflow sensor failure. It is common for the mass airflow sensor to get dirty (if the air filter is dirty) and lose the ability to read the amount of air coming in the engine.
If the sensor goes bad, the engine will not know the right amount of fuel to add, causing problems including poor gas mileage, lack of power and more. The computer in the car reads the amount of air coming into the engine from the mass airflow sensor and then calculates the correct amount of fuel needed for proper engine performance.
For an engine to perform properly, it needs a specific amount of air-fuel mixture.
The mass airflow sensor measures the amount of air entering the engine. All cars take air from the outside and pass it into the engine through the air filter. The mass airflow sensor is a round tunnel made of plastic with a sensor attached inside. What is the Mass Airflow Sensor all about? Service type Mass Airflow Sensor Replacement
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