What Does a Mass Air Flow Sensor Do in a Car, Truck, SUV?

What is a mass air flow sensor, you may be wondering, especially if you saw the term in a trouble code, or your engine isn't running its best. This video answers that question for you! Len describes what a mass air flow sensor does, how it does it and why it does it. He also addresses some of the concerns of a broken or dirty sensor, and what you can do about it!

If you liked this video, check out some of our other automotive general knowledge videos!

⚠ DISCLAIMER:
While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

[AAuto]

√ *Watch the Video*
√ *Do it Yourself*
√ *Save Money*

[SB-csyv]

If I had to take a class I'd definitely want you to be my instructor. You're information is so clear and understandable.

[Redberryfarm]

Sensor cleaner $13 or so Amazon... A new sensor for our truck $55- $145 at 1A Auto. ( The first large round type shown on the table) - Will start with the cleaner. Thanks for the thorough video. 1 A Auto is our go to place for parts for years.

[renostubbs]

You guys should be at a million views, all 3 of you guys are experts, simply the best I have ever seen.

[cinnaberrry]

This man is amazing at explaining. The hand gestures, close up shots, and overall detailed information. Subscribed!

[paulgreen]

My van (UK) went into limp mode when the MAF went. Main xdealer was £120 per hr plus parts,
Local commercial garage £60 per hr, but they used original part. For the warranty.. now runs like a dream.

[whttrails]

Never even heard of MAF sensor. Very well explained and extremely helpful! Not my current issue but great job.

[Moe.]

I know this is an old video but i had same problem with my Silverado my engine light was on and off mostly on thanks for sharing this information and you nailed it with explaining

[mandoughbeats]

I had a hose the ripped off and it was extra long so I cut it in half and it still fit . It’s running good but now it’s saying my MAF sensor circuit bank 2 code . You think it’s because the hose ? I just cleaned the sensors but it threw the code up again

[makeka]

Awesome, I know NOTHING about cars but I'm learning so much from you, I love it. I will be doing the check-in on my car MAF and air filter. You make it all look so easy, I hope it will be as easy for me too. THANK YOU!!! You are lovely.

[deespasojevic]

Lenn is great at explaining the components specified job. Nice job bro

[azukapatrickebeh]

Your simplicity makes a great deal. My lexus es330 does Engine hesitation, and I can see where the fault is coming from.

[anthonymansell]

Thanks just changed mine. Performance restored

[deemack]

Either he was a CHEERLEADER, TRAFFIC 🚦 CONTROLLER BACK IN THE DAY... HIS HANDS WERE ALL OVER & VERY DETAILED!! 👍👍

[dinhpham]

Len, thank you much for educational and clear presentation. I was be able to fix "check engine" light by cleaning MFA on my corrola from your video instruction.Thanks.

[K_Nunez]

I like it when the content creator know what they are talking about and give good advise to their viewers. 🍻

[Doe-Nutz]

The hand gestures are killin me😆but very encouraging like a cheerleader 🤣Great job Sir🙏🏽👊🏽🤙🏽

[robinhockett]

Thank you for help .but I need to know about the idle air control valve where is it located

[gaylordfreeman]

Enjoy this YouTube channel. I have a 2012 F-150 Lariat CrewCab 6.2L 4x4. When should I change the airflow, belts, hoses, shocks & struts?

[CarterLeigh]

this vid was one of the most informative, I'll be checking mine tomorrow & hopefully it's just a dirty MAF. thank you.