Mass Airflow Sensor Replacement
What is a mass airflow sensor?
Mass airflow (MAF) sensors constantly measure the volume of air going into an engine, and send that information to the vehicle's computer.
How does the mass airflow sensor work?
The engine's computer has to receive input from many sensors, and ensure they are in agreement. An extremely important sensor that is used in reference to nearly all engine operations is the mass airflow (MAF) sensor. The MAF sensor records the volume of air that enters the engine's intake tube, and reports that information to the computer. This allows the computer to calculate, or confirm, the amount of air moving into the engine, amount of exhaust gas to expect, the amount of fuel to send into the engine, and many other important factors. Lastly, this sensor works very closely with the manifold absolute pressure (MAP) sensor to allow extremely accurate response to changing conditions.
A failing mass airflow sensor can cause the Check Engine Light to come on and engine starting/running problems.