Turbulence.
the uneven heating of earth's surface causes pressure differences which set air in motion
A rough idle on a Mazda 3 can be caused by several factors, including a dirty or faulty idle air control valve, worn spark plugs, or issues with the fuel injectors. Additionally, vacuum leaks, a malfunctioning mass air flow sensor, or problems with the engine's ignition system can contribute to uneven idling. Regular maintenance and diagnostics can help identify and resolve these issues.
a dialomgram
Rough idling in a Lexus ES300 can be caused by several issues, including dirty fuel injectors, a clogged air filter, or a failing mass air flow sensor. Additionally, problems with the ignition system, such as worn spark plugs or ignition coils, can contribute to uneven idling. It's also advisable to check for vacuum leaks, as these can disrupt the air-fuel mixture. A diagnostic scan can help identify the specific cause of the rough idle.
a dialomgram
there called mass air flow sencer.
Poop poo
The movement of air is called wind. Wind is caused by the uneven heating of the Earth's surface, leading to variations in air pressure and the subsequent movement of air from high pressure to low pressure areas.
Rough Start, Low power will feel like car is starving for fuel. Unplug the mass air flow sensor and start car it should go to default mode and if it runs fine you have a bad mass air flow sensor.
I have never seen any other reference for a Mass Air Flow sensor except it is sometimes referred to simply as the Air Flow Sensor or MAF.
A current of water is called a "stream" or "flow" while a current of air is referred to as "wind" or "breeze".
I believe that would be called return air.