Mass Air Flow Sensor – Vane – Explained

How does a MAF sensor work? What is a vane type mass air flow sensor? This video explains how a vane type mass air flow sensor uses a mechanical system to determine how much air is going into an engine, to regulate the amount of fuel injected.

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31 thoughts on “Mass Air Flow Sensor – Vane – Explained

  1. Sushil Sahoo says:

    good.. keep making this type of videos.. thank you brother

  2. AbandonedHat says:

    I'm taking automotive classes at my college, your videos help me understand everything so much more easily, thank you.

  3. Nihar Thakar says:

    perfectly explained , keep it up

  4. youre so hot jfc

  5. I would never call a vane air sensor a "mass" air flow sensors. It is more correctly a "volume" flow sensor. You even explained how the air temp senors was used to "compensate" for denser colder air.

    And I think you are correct, nobody uses vane meters today !

  6. drogo20 says:

    nice. question. i have a celica supra 85 and i need more fuel .can i use the sensor to do that? i mean open it and mess with it.

  7. Jimmy Hylton says:

    you do great videos, thank you.

  8. superchargers have this

  9. Sparks says:

    Very well explained. Thank you.

  10. kamilioo01 says:

    I am waitchin these videos for hours! 2 hours now :D

  11. Do it! Haha thanks for watching.

  12. Desire Moon says:


  13. Just south of Canada – los estados unidos.

  14. Ray Pest says:

    Are you canadian?

  15. Well, banked curves and high g-force turns would still alter it. The CG would only be in the axis of rotation assuming the geometrical plane on which the car drove never altered.

  16. billieguitar says:

    I was thinking, if you were to engineer the flap to have it's center of gravity on it's axis of rotation it should fix the disadvantages that you mentioned.

  17. I have a video on MAP sensors which is the speed density method.

  18. Tis a b18 my friend.

  19. nice little b20

  20. Great question, and I can confidently answer no, it will not be. There are two courses offered (IC engines and automotive engineering) which are great, and yes, will be very similar, but other than that it's mostly learning the physics/math behind all of it. Check out my website "future plans" tab under the FAQ's to read more about what you're getting into. (Link is in the description, also on channel page).

  21. I'm a freshman in MechE at NCSU right now and I've been wondering: is this generally the kind of knowledge I'll be learning in higher-level engineering courses?

  22. Can you do a video on Variable Geometry Turbos?

  23. newballin says:


  24. StevenSWM says:


  25. Getting warmer.

  26. newballin says:


  27. Okay, I've re-posted the annotation. Let me know if it now works. Thanks!

  28. Sounds like you need a new one

  29. tough931 says:

    the light is on. i think there is something wrong with the sensor. it was hanging and touch the road while the car moving

  30. I'm not a fan of poptarts.

  31. The math is definitely rough, how many semesters are you in? Dynamics and vibrations were the two most difficult courses for me.

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