What Does a Mass Air Flow Sensor Do in a Car, Truck, SUV?
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- Опубликовано: 5 июл 2024
- Shop for New Auto Parts at 1AAuto.com 1aau.to/c/77/ak/air-flow-meter
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!
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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. 
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Could this cause a car struggling to stay started on a cold start? I noticed after checking my MAS it was completely black in which i could not get rid of the Residue when spraying it. Once my car has started warming up the idle smooths out with no issues after through out driving the car. I have no check engine lights nor codes. I’m totally confused as to what the issue is. I also change the spark plugs.
+T. Farris We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
Just went to order a MAF Sensor for my 98 Mazda but you dont have any..
I don’t have a check engine light on but I recently checked my cabin air filter and it was really dirty with leaves and debris… the next thing it effects is the MAS correct?
Good Advice
If I had to take a class I'd definitely want you to be my instructor. You're information is so clear and understandable.
You're so good at explaining.
Never even heard of MAF sensor. Very well explained and extremely helpful! Not my current issue but great job.
Come on
Nobody who just heard of a MAF calls it a MAF. Liar. :D
This man is amazing at explaining. The hand gestures, close up shots, and overall detailed information. Subscribed!
You are beautiful 😍😍
Can do without the animated hand gestures, way too distracting. Awesome explanation though
He had. Me at "runnability"
You guys should be at a million views, all 3 of you guys are experts , simply the best I have ever seen.
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.
Lenn is great at explaining the components specified job. Nice job bro
+Dee Spasojevic Thanks for checking us out! 1AAuto.com
Hey your a good teacher but if you want to be an excellent teacher do this simple thing slow down. You masterfully understand these different things of how a car works but your viewer is not a master talk to people as if they are children slow down how you explain things and you will be the best teacher you could be.
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.
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.
Your simplicity makes a great deal. My lexus es330 does Engine hesitation,and I can see where the fault is coming from.
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
Thank goodness for this guy explained it 💯, will look forward for his next videos
Great presentation, detailed and clear, i learnt things i didn't know i needed to know. Brilliant.
Your very good at explaining, thanks for clearing up some things.
I would agree, this guy's the best. Loving the (your), energy! Great stuff.
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.
this vid was one of the most informative, I'll be checking mine tomorrow & hopefully it's just a dirty MAF. thank you.
+TLC Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
That was pretty damn good, well explained and understood, thanks.
We are glad to hear it Domingo!
Outstanding Vid.
The explanation of the Mass Air Sensor and how it works and what it does, helped me to better understand the Air Intake system and how it effects Gas Milage.
The Visual Inspection under the Hood of the Air Intake and associated system Components was also good. looking for loose parts and Leaks, that is Good stuff.
Well done, Keep up the Good work.
I learnt alot about the sensor etc etc You're explanations are spot on and very easy to follow. Thank you
This guy is AMAZING simply AWESOME it's like he's driven my truck n know's feels n hears what my truck is doing HE'S MIND BLOWING THANK YOU TREMENDOUSLY SIR
This is the most informative and entertaining instruction I’ve seen so far! 💪🏼💪🏼💪🏼
I like it when the content creator know what they are talking about and give good advise to their viewers. 🍻
Always enjoy your presentations.
The ECU and details on how its works would be appreciated.
Do they come from one or two manufacturers, then just programmed to the car company specs?
What do you offer in terms of getting the live data out and examples of this.
What do you think the 2020 and 2021 scanners models are going to evolve to?
2 words.
Ur gr8.
Now I'm going to watch some more of your videos.
You are absolutely amazing! Thank you for the great enthusiastic, upbeat, and thorough lesson. Was going to use vinegar in a spray bottle to clean the sensor. So happy I looked into this first.
One question. Can't seem to find how to clean the fixed filter in a 2004 Lexus RX 330. Do I have to replace the whole filter housing? The inside is full of, what appears to be, nesting material. It is my mother's car and it only sat for 2 months, intact. We replaced all of the coil packs and spark plugs. Codes read 5th coil pack malfunction. When we were ready to replace the housing and new filter, we noticed the fixed filter on top. Then noticed the sensor definitely needed cleaning. And the inside is nasty.
I loved this guy , I've seen a lot of RUclips videos but no one was as clear as this guy thanks !!!!
Check out Chris Fix channel he explains ALL with video.
Nice job, simply explained. Thanks
You guys are always there when I need you thank you
Awesome video I was ready to go outside with my screw driver.. very detailed in explaining..
thank you
The way you explain this is awesome.
U make all this sound so simple to me
Thanks man.i know what's wrong now..im ordering parts now
Very direct and to-the-point appreciate it all
You are a top notch teacher , good job.
Definitely love this video and how it's presented...clear and direct...very very informative
+Roland M Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
Very good job explaining about sensors thanks!
Good job in explaining this part and how it works
Great job 1000000000℅ how can someone dislike passing on knowledge 🤦 either jealous greed like or cheap mechanics who rip's you off..keep doing the good work champ👍
+Tamemy Niu Thanks for the feedback!
Thank you. Love this presentation. Very helpful and educational.
Enjoy this RUclips channel. I have a 2012 F-150 Lariat CrewCab 6.2L 4x4. When should I change the airflow, belts, hoses, shocks & struts?
Great instruction, Great video. Thank You !
Very well explained video great information , thank you!
+Art Serrano Thank you! We love empowering our customers and showing how to perform DIY auto repairs with our high-quality auto parts. 1AAuto.com
Excellent demonstration... thank you.
Such a clear explanation ...wow ..he should get million views....
Thanks just changed mine. Performance restored
Multimeter is more like it for DIY. Let's leave the $2000 one to professionals. Thank you for the informative video.
+Samb wague Thanks for checking us out! 1AAuto.com
Excellent tutorial! Thanks heaps mate!🧰⚙️🔧👍
tks!! it really is a good presentation and I learn additional knowledge about the subject.
Thanks for the information....I just clean my MAFS using your method...
+Mahmoud Al Shawi Thanks for checking us out! 1AAuto.com
If you used method in video, you completely missed 2/3 of the sensor elements 😆.
Either he was a CHEERLEADER, TRAFFIC 🚦 CONTROLLER BACK IN THE DAY... HIS HANDS WERE ALL OVER & VERY DETAILED!! 👍👍
this video was informative! great explanation, thank you!
super, super video, thanks. Question: in addition to cleaning the sensor probe, should you also hit the male/female sides of the connector with same spray?
Thank you for your time to teaching, and thank you for the video
YA'll are super helpful for a widow that loves to work on my tahoe
Well done video on a little known about component - thanks
+John Goard Thanks for checking us out! 1AAuto.com
Thank you for the videos you are the best hope you keep making videos explaining how to install parts thank you
Thanks. I’m Learning lots from you.
THANK YOU FOR THE FANTASTIC SHARE OF KNOWLEDGE !
I APPRECIATE YA!
Thanks you for giving me some information how to check mass air flow sensor
Great video clear as always
Thank you . This would be my first time
Well explained and helping. Thank you!
+TheThreeLeggedChair Thanks for checking us out! 1AAuto.com
Good videos on the vear-icles!!
Thanks for the video. My mother in law's 2011 Buick Enclave is having problems with the check engine light indicating Bank one problem which says it has rich fuel flow? Changed both upper and lower oxygen sensors, but MFS, also could be a problem. We'll check into it again. Thank you for the video.
Good presentation. Very informative and to the point.
Clear explanation. Well done.
Thank you for sharing it! It is really useful!!
Very educative and understandable.thanks.
Nice explanation. I like your way of explanation.
+Muhammad Tahir Siddiqui Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
Super, and well done,,, haven't bought many parts from you guys in 2021, but that's good since old folks are staying home more 😁 but best to all at 1-A1for the Holidays,, Bears Rod Shop, Tx
Great explanation thank you.
He's the best. CAN U SO SOMETHING ON THERMO SENSORS
hi brother. just a quick question, does changing the air flow sensor from a stock one maybe to a better branded air flow sensor could actually ehnace the air intake into the engine? does this modification actually affects the ecu or any parts of the car?
Thank you dear...u such expert ...very informative TPS information...thank you again
Great , explanation. I have a question for you. What should I do to to enhance MPG for Toyota Rav4 2001.
I have replaced the four sensors on the cathalyc converter. I am getting 22.5 MPG on High way.
Thank You,
Mateos.
Thank you! This was extremely helpful and informative!
Awesome video & I really learned a lot
Thanks bro
+bkspicknasty Thanks for checking us out! 1AAuto.com
as an added bonus, you will see the check engine light iluminated, ha ha ...great vid. thanks.
You're a good teacher
After you explaining how delicate it is and you dropped it my heart went into my throat hahaha
Hello sir ,I like way you're explained .
I have 2 problems with my 2001 isuzu Rodeo 6 cylinders . It's starting on 4 cylinders and don't want wanna start . Short down after sometime even though it running. Can you help me on that please..
Great instructor, this guy is the real deal. Not the problem I have but wow he is good. My 2013 Ford Explorer, stops on me while driving. I had a diagnostic tool plugged in which indicates code PO2111 ( throttle body stuck open) I have never done this before. How do I solve this problem, and how do I locate the throttle body actuator? Thanks for your help in advance.
Superb explanations. Good job bro.
+Quarqu Orpon Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
Thank you. I just had to have my sensor replaced today and wanted to learn why (and what the heck it was lol!).
The hand gestures are killin me😆but very encouraging like a cheerleader 🤣Great job Sir🙏🏽👊🏽🤙🏽
I have a po102 and a po103 should I try cleaning 1st ? Would appreciate your take on this. Thanks
+Piri Hern It is always worth it to try and clean it out to see if that fixes the issue. These codes are sometimes caused by a dirty MAF and related components but if the issue persists and the voltage is still not running correctly (throwing the same codes), it will more than likely have to be replaced.
Your response was greatly appreciated. Muchas gracias . All your videos are helpful especially for us diyers on limited income
I have a 94 gmc sonoma with the 4.3 vortec. Its idling REALLY high at start and higher when I put it in drive or reverse. Ive check everywhere for vacuum leak and can not find one. What else could cause this?
This is one great explaining thank you
Beautiful and thanks again
Do you guys have a video about traction control stabilizing and abs lights on dash how to fix that
Lenn: drops airflow sensor
Random voice: Quick! The quicker picker upper!
This is gold. Thanks.
Thanks. Buddy. I really appreciate it,,
New way to say vehicle. VEHR-RICLE! I like it. Thanks for the good video. 👍
I was literally coming to write this 😂
Good job . God bless you
well explained thanks
Thank you for help .but I need to know about the idle air control valve where is it located
Very nice video ,thanks!!!