How to know if the mass air flow sensor is bad
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- เผยแพร่เมื่อ 5 ต.ค. 2024
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On this 2003 Nissan murano it showed to have a mass air flow sensor code. Before spending top dollar replacing, why not cleaning it
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2022 new subscriber thanks for the help brah just showing love like you been giving us. And you been saving us money
3 years later and you're still helping people with this video. What a good guy!
6 more years and still
I have never in my life commented on a TH-cam video. After siphoning fuel (to remove water that wasn’t there) replacing the spark plugs, and pulling/testing the fuel pump on my armada....I found your video. Mine wasn’t a piece of fuzz but a small mosquito. Could not believe something so small would prevent the truck from getting past 2k rpm. No more hesitation, running great. A million thanks!
SCBiggie I’m so glad you got your vehicle fixed. Thanks for watching
After a week of trying to get my daughters 2006 Altima to idle I found your video last night. This morning I did exactly as you in the video. A small piece of trash fell out. Sprayed with MAF cleaner, let dry and reinstalled. Cranked it up, idled and ran fine during a test drive. Thank you sir!!
No problem I’m really glad that this video helped out. don’t forget to subscribe and hit the little notification bell to get all the brand new videos coming out from oz mechanics
Great job! It's good to see a guy who is not a parts changer and cares about customers.
You win the "Angel of the Year" award. Fly on.............
thank you very much :)
This video( and my skepticism) just saved me a couple hundred. Mechanics and auto parts clerks were saying I had to buy this and that but all i ended up spending was $8 for the cleaner. THANKS!
no problem. im glad this video helped out. feel free to support the channel to keep more videos like this coming. there's a support button on my screen. and always thanks for watching
I love that you investigate why the part is not working instead of just replacing the part!
I was so pleased to watch this. After being all over TH-cam for what I believe to be an air flow issue, you were the only one to show the tach and explain what your problem vehicle was doing. My initial start rpm went to 600, disengaged MAF start held 1200 rpm at idle. Wow. Thanks to you, this might be where I need to start looking. I will let you know how it goes later. Need to buy cleaner but nothing open here at 6:30 pm. Off to supper, laundry, homework and chores for tonight. Sincerely, single mom, Full time RN.
What's the name of the scan tool u use
after spending about 60 bucks on plugs, wires and a coil pack, I tried cleaning the sensor and to my surprise it actually WORKS!!! YOU ARE TOTALLY AWESOME!!!!!!!!!!!!!
Joe Richards I'm glad it worked. Please feel free to check out my new cam sensor repair videos as well
I should have watched the video before I bought the Sensor for a hundred bucks!!! Thanks for taking the time to make and post this...
If you feel like this video helped out, feel free to support the channel by donating. Just one click away on the link below, to help support the channel :)
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I am just looking for a fix for my grandson’s truck. Your video is A-1 and I will first clean the sensor before replacing it. Thank you.
GUY, you just saved my life hours looking for a freaking video,
man thank you
Hey thanks for watching. I'm glad you liked it and it helped out
someone can help me please, thanks.
Oz Mechanics hey man, i cleaned it, and it seem to be fixed, but it keeps stalling and also i gotta hit the gas lots of times so the temperature goes up until it reaches the middle or either the car would, well, turn of and it shakes, and after that its normal, and if i let it rest for 2 hours the engine gets cold and i got to do the same thing again, i clean the throttle and clean the MAFS and also replaced the thermostat so idk, i have a 2001 toyota corolla so if someone can help me please, thanks.
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Cesar Golindano start off by checking your check engine light with a scan tool to see if you have any codes
Oz Mechanics not a true station
Thank you thank you thank you. I had the same issue but it was a piece of plastic from the old air filter that fell out of the sensor. Car runs perfectly now.
im glad your vehicle is good now. thanks for watching
Amy Saylor-clemente j
Unbelievable!!!!! I had the same thing happen and I check my maf. There was a little piece of a leaf in there... such a big thank you!!
Glad this video helped out
This was the problem my 2006 Nissan Frontier was having. I wish i had found your video sooner. I do apprishiate the help you gave me on a past video i commented on.
cal88usa no problem thanks for watching and keeping my videos relevant
sorry to hijack this but wondering if that 06 Nissan had mid-band/entering highway ramps jerking/hesitation and fuel smell in interior at startup due to rich shutdown??
It's amazing that part worked after you banged it on the desk!
Mine has two fine filaments that would break easily by doing that.
I thought that was a good video and quite informative. You seem like a nice, honest man....my hat's off to you. My girlfriend has a 2012 Nissan Sentra and her "check engine" indicates Mass Air Flow Sensor (module) so we'll try the clean first. GOOD LUCK!!!!!
Steve Lochhead hope it works bud. Thanks for watching and supporting
Thanks (her) car was died -running rough - New M A Flow cost $100. Looked inside mine it had a deerfly in it. Runs like new. you saved me a lot of money. Thanks davy
I am so glad this video helped out. Makes me happy to know the vehicle is up and running
Why didn't your air filter , filter out the Deerfly, DT ??
gary miller I’ve seen plenty of vehicles that whenever someone replaced the filter they didn’t completely close the housing
Decent vid,Oz, you forgot to say, " do not use carb cleaner since it will leave chemical residue that will keep tripping the light"..Use MAF cleaner only.
I actually watched a video they showed different methods of cleaning it. All did they damage but yea carb did the most out of them
Awesome video and the best part to you are honest I do most repair in my cars I'm a vw & audi fan and most fails for these cars are relate to the map sensor when is about loosing power or boost 2.0 vw jetta sometimes give you this trouble just because the map is dirty or also the throttle body 1.8 turbo manifold pressure/boost sensor (g31) p0238 code is also relate to the map sensor only takes 10 minutes clean it clear codes and your back with not lights ..this could sometimes the cure at least you have some leaks or wire bad connections ..I'm not a mechanic i just a simple computer tech that goes beyond my knowledge keep the good work my friends greetings from Houston..
thank you for this video. I took my car to a mechanic today and he told me that was my issue and it would be $300 to fix. oh wow I will attempt to fix on my own
Kimmy LE cool let me know how it goes
Thank You so much for posting this video! The place I went want to charge me about $500 to $700 to replace my air mass sensor and sparks plug!
katietang50 yea all shops are different and all cars as well. Like the Ford F-150 5.4 3V engines are e pensive to replace the spark plugs. Can run from 300-500 a piece
Thank you so much for the info!
@@OzMechanics LMAO B.S
Great job! my daughter car was having small problem tried this and it worked. Thank you
Hector Cavazos bo problem. Glad this video helped out
Always vacuum the air box when changing the air filter. You have to get any loose debris out of there. Use top quality air filters and change them on schedule. If you live in a dusty area, you will need to change the filter more often.
+John Ferguson good input
people like you are a breath of fresh air! thank you for taking your time & knowledge to help people. new subbie here.
Thank you very much this comment just made my day. thank you :)
A mechanic who likes to save car owners money? Cost of cleaning versus part replacement. Wish I could find a mechanic like that.
Just changed my filter! Will check the MAS next! Thank you for this!!! 😊
We are having an air flow issue with our 2011 Nissan Sentra. This helps.
Hi there. Chris here from England UK. my Nissan almera tino 2004 1.8ltr. the same is happening to my car. It cuts out when in idle. especially when stopped at the traffic lights for a while. it will just start to drop below 800rpm and sometimes stop or goes back up. I will try cleaning the throttle body and MAF Sensor. thanks for the video
I have a 2011 Chevy cruze,just bought sensor,already had the cleaner,I'm gonna try to clean it,I do not like messing with cars,I'd rather a mechanic do it but this seems easy,thanks so much hope it works☺
Thanks for the video. I have a 2000 Mercedes ML430 but this video answered my questions. I have already ordered a new Bosch air flow sensor so I missed the opt of checking for it being dirty, blocked, etc. But, I have 180,000 miles so it's not a big loss, the way I figure it. I bgt it for $138 instead of $399 retail or $260 from my mechanic. Amazing what parts cost. I don't see over $15 dollars worth of material in it. Maybe I should get in the making-air-mass-sensor business!
7 year old video thanks for the help my car was doing the same thing going to fix it tomorrow
Thanks! just got this code and light on a 2013 VW Passat. Gonna check if its dirty right now. Just gotta figure out where it is first. Hopefully cleaning it will do the trick! Great tip Oz!
Dude i just want to say that you do an awesome job on these videos you are informative i have learned so much thank you this is the first time ive commented on any of the vids that ive watched yet and its a lot of them keep up the good work
Thanks for the information, which I found well presented and clearly explained. Nice to have your kind of experience and support available to help avoid budget busting dealer charges. I'd rather have grease under my fingernails than charges on my credit card!
thanks for watching and keeping this channel relevant
thanks for watching and keeping this channel relevant
I'm having that problem on my BMW X5 right now... I already ordered the part right now before watching this video but tomorrow when I go pick up the part I'll try to clean the old one and put it and see if the problem persists and I will return the new part 😉
Thanks
After getting an 'engine check' light on the dash of my 2015 eco-diesel (traced to a mass air flow sensor issue) I was able to clear the light simply by changing the air filter. I found a mouse nest build-up on the intake side of the filter and after vacumming the filter unit completely and changing the filter, the light cleared itself after about 5 miles of driving. Try this 1st - it costs little to nothing and should be done anyway.
Great video. We will try this as our 2005 loses power after replacing plugs camshaft sensors crank shaft sensors but not mass airflow yet.
thank you for this video! it helps me a lot to DIY my own car.
hey thanks for watching
We had a similar issue with a ford that came in the shop running horribly, and upon inspection of the maf, we found a fuzzball in the idle bleed port. Pulled it out and problem solved. No charge to customer.
Good info. Always better to check for the easy fix before replacing the part.
I had a feeling the mass air flow sensor was the problem with my car which lead me to your video. Same exact thing my car is doing. Been kinda wanting to die down when I stop at the light. Changing mine tomorrow see what happens.
Wait. So the other mechanics disconnected the MAF and it started working good and they didn't even bother to take it out and take a look at it? Hmmmmm. Good job Oz! Just started watching you and Eric from Advance Auto. Great Team! and funny.
Thanks, dude. I think you may have just saved me hundreds of dollars with this video!
DedhedWaldo no problem. Let me know if it works
OZ thanks for your video. I have mercedes Benz W202 C180 behaving the same as that one before you clean it. Now it's only cranking and dies down like that. Does this mean means it's mass air flow sensor or crank sensor? Please help me I parked my car for a year now failing to get help please.
thank you sooo much been pulling my hair out trying to figure out what the issue was... I have a 2003 Nissan Altima and it's doing the exact same thing. I hope this works... thanks luv n be blessed.
Nay Nay Grey
Check out if it helped.
www.patreon.com/ozmechanics
I just bought a Nissan Maxima 2003 I install did an oil change and change the air filter have my car parked a few towns away if this works tomorrow your a blessing
loved the fact that you recommend cleaning before replacement of this part. I have a 99 4Runner with this problem where is the mass air flow sensor located on my car?
MAF will be very near the air filter, Selma
I need a mechanic like you in my town, half the shops around me will send it back worse than it was. Or do some hack and hide fix on you.
At which place
Here in texas mechanic are crooks
@@oscarvasquez7408 idk if they're crooks here or just don't know what they're doing. Guy at the tire shop near me gashed my new rims trying to put them on the tire machine backwards. And the guy at the exhaust shop left me with a exhaust leak saying it was as good as it could be fixes and half welded pipes that rattle like crazy and still charged me 300
You’re a excellent mechanic! Thank you!
Thanks David.
Thank you for not just changing parts... Great job..
several sources say to clean the MAF sensor with MAF sensor cleaner ONLY, and to NOT use any other type of cleaner or carburetor cleaner.
+Giuseppe Manugas ive read them before. carb cleaner when sprayed and making sure its completely dry at the resistors should not cause any problems
The wizard of Ozzie never inspect a car without knowing everything that the customer can tell you
Removing the connection to the maf while engine running, a good maf will stall the engine , a bad maf will let it run.
However will it not mess up th air intake??? Please advice.
Great video on the importance of having a clean mass air flow sensor!
thanks! This was so helpful. I changed out my MAF in my 88 Buick Park Ave today. It's running better! Though, the check engine light is still on. :/
disconnect the battery for 15 minutes. erases codes
Sup bud.. saw your video nice one another Mechanic wouldn't say anything they'll just charge them for the new piece and labor.. hit the customer in the head. Nice video glad to hear you was an honest Mechanic.
Had same stalling issue... Thanks :)
Good video.. very informative and a great way to save a few bucks on a simple fix.. Thanks for the info!
Thanks for the video OZ. Very helpful to someone who know very little about MAF sensors.
Thank you so much had the same problem opened the afs and there was a fly .The Diagnostics tech had advised for a new computer box
I'm glad your face is in the camera 😊 Thanks for the info!
lol thanks for watching
Is it possible to have bad maf sensor without a check engine light? My car has rough idle and hesitates when i press a bit harder on the pedal typically under 3k rpms
thanks a lot for your good information.. i have the same prob to my car.. i will try to check it..
Can a resister be black and still be good? Thank you.
Thank you for sharing this information Sir I appreciate it very much
Thank you so much we had the same exact problem and we're able to take care of it ourselves
BadAss!!!👍 I'm having issues on my 2003 Saturn Vue 3.5
I'm about to clean that sensor, great video! Godspeed, Washington State
D. Garza
Great glad you found the problem, quickly!
sharon moore thank you. Please feel free to subscribe and hit the notification bell to receive notification on new video coming out
Having the same issue with 2005 Toyota Corolla. Have cleaned and replaced part but still having same issue. Was told computer needed o be reset.
Wonderful information. I am back on the road thank you so much
So the engine light has to be on for you to find this code with the mass air flow sensor bc I don't feel that my air conditioner is cold maybe needs it could just need Freon but I just found this video so I was just asking does the engine light have to be on or can I just clean the sensor maybe my air conditioner will blow colder I haven't even purchase yet but if I do
Thanks for that important information
Bruhhh. I thought it was my fuel pump . This saved me $1200 .
Cool. Really glad this video helped out
$1200!?!??!?!?!??!?????😳😳😳😳😳😳😳
Who's charging $1200 to replace fuel pumps????
I charge $200 Labor plus parts.
@@kylelove927 probably 99% of shops as its a very laborious task on modern cars
@@mrcoconut9205 Absolute nonsense. I'm a mechanic myself. I've replaced countless fuel pumps on several different makes and models. $1,200 is wildly absurd.
@@kylelove927 if it’s the injector pump then you’ll be looking at a bill for about £900 so it would depend on if It’s diesel or not
2012 Nissan Frontier
I'm hoping its an easy fix. Going to try cleaning it first. Truck started fine drove fine for a mile then just stalled while cruising at 50mph. I pulled it off and now it starts for a few seconds (very rough idle) and stalls again. Press gas pedal and no rev. MAF sensor?
You are clever. Thanks for the info.Greetings from Iraq.
Bro your my hero u just saved me a headache thanks from hawaii
In mexico they didnt have maf cleaner so i used throttle body cleaner it worked for me.
Please can you help me...I remove the cable of maf sensor when engine is running to check the sensor is working or not ,so the car no stop and i see the check engine light appear..how i can remove the check engine light???
Good job I just learned something thank you
Good video. One error. Never use carb cleaner on MAF. ONLY MAF CLEANER.
Wifes 2003 nissan sentra has ran perfect, went out today and liked to never got it started. Sputtered and sputtered and finally kept running, drove down the street no acceleration when stepping on the gas, it would slowly start to pick up speed. if you turn off motor hard to start again, had the hood up, also got a backfire by airbox.
Cant figure this out? What do you think
Thanks
Hey Oz I replaced my maf sensor and the car starts up and idles fine…but as soon as you step on the gas….the engine drops out and throws a code for the maf….it’s a 1992 Lexus ls400 ….I think it’s my ECU as there a known issue.
You are the man
hi oz very help full appreciate your video saved me a lot of work well I've got another question my 2000 Pontiac sunburned completely died on me while I was delivering it has gas and gas is getting to carb battery is good do you have a general idea what I should look for to diagnose my problem?
They say that the typical pattern of a bad MAF is a vehicle that is running rich at rest, lean under load. How often do you see that?
First I do need to apologize on these old videos. Not the best I’ve produced. Normally I noticed that you see more of the fuel trim discrepancy while the vehicle is under load. I like looking at the fuel trims in freeze frame to see if it was running lean while the vehicle was under load, after that I want to verify if this is a fuel issue or air issue, so I run the VE test. Volumetric effeminacy test
Honest mechanics will have many great things coming for you man. Thank you. Any suggestion what could be wrong with my car when at times when i start the car, it goes on the limp mode? I can still drive the car but its like in a turtle mode. Thanks in advance.
hey thanks for the love. with this it could be countless of things and the worst thing to do is a guessing game. with the proper scan tool you can check out the codes and then test on.
Great job i just got my maf part hopefully it works
thanks I'm gonna clean mine on each of my cars tomorrow... darn easy fix...
Hi Oz...You are amazing! Thanks for doing what you are doing! I have a Kia Sedona 2004. It was running fine until I put in a tank of gas. Suddenly, it randomly cut out. I'd be driving and it just seemed it was not getting gas. I have 67,000 miles on my car. After a week of my thinking maybe I had water in the gas or something, I decided to take it in to Big O but before I could, it literally just stopped. They ended up replacing a crank sensor, timing belt, water pump and coolant and cam sensor. I looked those up and yeah, the symptoms matched. Though I wondered if it would be a fuel pump. Anyways, why am I messaging here regarding the MAF? Because, when I got my car back, it runs and gets rpm and I can drive 50MPH but at 25MPH is shift weird, or slips or hesitates but not like before when it was the cam. Still, it is enough for me to worry that the car might lose gas and cut out on me. I asked Big O and the tech said it might be the MAF. But, watching you now, this is NOT the symptom I am having. However, maybe the symptom i am describing is a MAF symptom on a KIA?? But, the thing is, I did not have this symptom before coming in. Do you have any ideas what it could be and if a MAF is really it? Also, the tech said they dd not have a sensor like you used and some cars do not read MAF stuff...is that true? Please message me asap if you can. I really am lost here. I can't afford more repairs.
Nice content but take your next video horizontally, please. That way, the picture would be much bigger on my laptop instead of being just 1/3 of the screen. Thanks.
Augie Inciong yea that was one of my earlier videos. Please feel free to check out my newer video and see the difference in quality
A 2005 Honda Accord I am working on it was doing the same thing, but nothing was inside and I replaced it and it still is doing the same thing.
Man no one explained this damn issue like u did 💯👌🏼mazda6 same problem 😩until I watch this video 💯👍🏼
It works! Wondering how that crap got in there. But your vid is titled "How to know if your MAS is bad." If this junk hadn't been in there, are there ways to check the sensor for other issues? Mine is throwing a code, and it's been cleaned once, but it's still throwing the code. Is there a way to check whether my sensor is bad, as opposed to just needing a cleaning?
Dougie D you would have to actually test the maf sensor to look at the voltage. I'll be putting up a video about that In a bit. I'm testing a map sensor but it shows how to test them
good tip. I will be checking mine and cleaning it. thx.
hi regards from Mexico and before I start sorry for my english and I have a question: how can i know if i need to change it or clean it? thanks for the answer. God bless u
Awesome!!!!!!! Fixed my Problem (1995 Isuzu 4WD Pickup) ....... Wow!!!!!!!
Good to hear that glad it worked out
Thank you Oz, your video was very helpful, I just saved some $ by watching your video, gracias
no problem. thanks for watching