How to Clean or Replace Mass Airflow Sensor Infiniti

Автокөліктер мен көлік құралдары

*Check out the tools we used below. If the video was helpful, please give it a "thumbs up" and consider subscribing to the channel.*
This video goes over how to replace a mass airflow sensor on a 2013 Infiniti G37X Coupe with a 3.7 motor. This should be the same process for any 2009-2013 Infiniti G37X. Most cars have only one mass airflow sensor or map sensor, but because the G37X is a performance vehicle, it has dual air cleaners, dual intakes, dual throttle bodies and of course two mass airflow sensors. A mass airflow sensor (MAF) determines the mass of air entering a vehicle's fuel injection engine and passes that data to the engine control module (ECM). Without an accurate signal from the MAF sensor, the ECM won’t know how much fuel to give the engine. That can either cause the engine to run rich (too much fuel) or lean (too little fuel). The engine's computer uses the MAF sensor to determine how much fuel is to be injected to meet the proper air/fuel ratio. It compensates for weather, altitude or your various driving conditions. Signs of a bad MAF would be a check engine light, poor idle, hard starting, misfiring, a change in fuel consumption, or lack of engine performance. A lot of the time if your car is performing poorly or not starting, you can disconnect the mass airflow sensor. The vehicle will then switch to limp mode and then the car may idle or start better, thus proving your theory that the mass airflow sensor isn’t performing to the proper factory specifications.
Tools needed:
1/4 Socket Set -- -- amzn.to/3zvlew1
Screw Driver Set -- -- amzn.to/3xbX3BF
Hand Cleaner -- -- amzn.to/3cvaQde
Shop Towels -- -- amzn.to/3CZm84v
Parts:
MAF Sensor -- -- amzn.to/3nlufTN
MAF Sensor Cleaner -- -- amzn.to/30I0mnP
These are the tools we used or something that’s similar. There are many manufacturers and various prices. It's a good idea to buy the better tool with the best warranty and easiest exchange in case of tool failure.
Disclaimer:
The Auto Teacher assumes no liability for property damage or injury that happens as a result of any of the information contained in this video. Any information learned from this video is to be used at your own risk. The Auto Teacher recommends safety first! Protective gloves, safety glasses and jack stands are highly recommended. These tutorials are made strictly to help people with their car projects and are given to provide factual information we’ve learned over the past 40 years working on cars. We do not guarantee any particular result or any particular warranty. Any injury, loss or damage contained by the viewer while attempting to follow the video’s instructions is solely the viewer’s fault and not The Auto Teacher.

Пікірлер: 100

  • @videomaniac108
    @videomaniac1085 ай бұрын

    These VQ 37 engines are a real gem. I have one in my 2019 370Z and was able to get about 55 crankshaft peak hp more out of it with an intake, exhaust and dyno tune. I did run a mixture of race gas with the pump gas to bring up the octane level from 91 to 94. This enabled the tuner to advance the timing more and extract more power.

  • @TheAutoTeacher

    @TheAutoTeacher

    5 ай бұрын

    Nice!

  • @1msm352
    @1msm352Ай бұрын

    Thank YOU dearly! Did the cleaning first, so hopeful this resolved it. My car runs and idles very smoothly now!

  • @TheAutoTeacher

    @TheAutoTeacher

    Ай бұрын

    You’re welcome!

  • @jesuspickg8929
    @jesuspickg89292 ай бұрын

    You’re an amazing tutorial guy. I liked how you recorded and explained everything

  • @TheAutoTeacher

    @TheAutoTeacher

    2 ай бұрын

    Thank you! Glad it helped.

  • @reneestrada_8206
    @reneestrada_82066 ай бұрын

    thank you man just got my g37 coupe first car ive tried working on myself i know it wasnt serious but this taught me something thank you

  • @TheAutoTeacher

    @TheAutoTeacher

    6 ай бұрын

    You’re welcome!

  • @immabrand2189
    @immabrand21892 ай бұрын

    Perfect video! Perfect explanation and execution! Just earned a new subscriber!! THANK YOU

  • @TheAutoTeacher

    @TheAutoTeacher

    2 ай бұрын

    Thanks and welcome!

  • @lucasmar5322
    @lucasmar53222 жыл бұрын

    So helpful. Thank you!

  • @TheAutoTeacher

    @TheAutoTeacher

    2 жыл бұрын

    You’re welcome!

  • @MrJobx
    @MrJobx2 жыл бұрын

    Worked, thanks man! To get the engine light off disconnect ur negative on the battery for 30 secs or more and should go away

  • @TheAutoTeacher

    @TheAutoTeacher

    2 жыл бұрын

    You’re welcome!

  • @S1ick10292
    @S1ick10292 Жыл бұрын

    Thank you

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    You're welcome

  • @atbmts6
    @atbmts6 Жыл бұрын

    Ty so much

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    You’re welcome!

  • @tshreks
    @tshreks2 ай бұрын

    Thanks for the video. Would you recommend OEM MAF or do 3rd parties work just as fine

  • @TheAutoTeacher

    @TheAutoTeacher

    2 ай бұрын

    Your welcome.OEM is always preferred, it really depends on the price difference. A aftermarket part bought from a reputable place will have a better/longer warranty.

  • @DrJames_YT
    @DrJames_YT6 ай бұрын

    I got the P0174,P0300 and C1109 codes. Is it just cleaning the mass airflow sensors ?

  • @TheAutoTeacher

    @TheAutoTeacher

    6 ай бұрын

    A malfunctioning mass airflow (MAF) sensor is one of the most common causes of P0174 code.

  • @marvinl55
    @marvinl55 Жыл бұрын

    What tools did you use for this my G37 threw that same code

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    You can see all the tools we used in the video description!

  • @morenoivan7822
    @morenoivan78222 жыл бұрын

    Like is it good if buy the maf sensors at o’reillys I don’t want to the dealership to pay a 1000 for the sensors

  • @TheAutoTeacher

    @TheAutoTeacher

    2 жыл бұрын

    Yes, you could get one from any major auto parts retailer, but I would get one with a lifetime warranty.

  • @Vagician817
    @Vagician8172 ай бұрын

    I got the p0304 and p0300 and I already changed my spark plug you think I just have to clean the (MAF) ?

  • @TheAutoTeacher

    @TheAutoTeacher

    2 ай бұрын

    Since you replaced your spark plugs and still have a misfire on cylinder 4, I would install a new coil on 4 and that should take care of both your PO codes .

  • @larrysmith5130
    @larrysmith513010 ай бұрын

    Did you have to perform the relearn procedure after?

  • @TheAutoTeacher

    @TheAutoTeacher

    10 ай бұрын

    We used the OBD2 scanner to clear the code .

  • @abraham2699
    @abraham2699Ай бұрын

    Is there any like reprogramming that needs to take place after replacing the sensors?

  • @TheAutoTeacher

    @TheAutoTeacher

    Ай бұрын

    No

  • @yeetyeet6071
    @yeetyeet6071 Жыл бұрын

    im having trouble pulling the wire off the sensor, not sure why it wont come out even if i push on the tab, it doesn’t budge

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    They become old and brittle and accumulate dirt as the miles pile on, in a warm area try WD-40 and pushing gently down on the tab and wiggle back-and-forth. If that doesn't work, get a small screwdriver or hook and come in from the front.Once released, you will have to use electrical cleaner to remove the WD 40 .

  • @adambeck8180

    @adambeck8180

    Жыл бұрын

    On my 2006 FX35, you gently pry the tab UP. Then the plug comes right out.

  • @Codenamepoetry_
    @Codenamepoetry_ Жыл бұрын

    My g35 will stop and go , like you would press on the gas and instantly press on the brakes , you know what could be the issue for that ?

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    Do you have any PO codes?

  • @davidsontchi6979
    @davidsontchi69792 жыл бұрын

    I did this and it works sweet. Problem is, its 2009 so i'm going to replace both

  • @TheAutoTeacher

    @TheAutoTeacher

    2 жыл бұрын

    Awesome!

  • @issas4660

    @issas4660

    2 жыл бұрын

    Anyone know iff i have to buy 2 seperate left and right maf sensors or does that even matter and all maf sensors fit the same left and right? I own a 2015 q50 3.7

  • @davidsontchi6979

    @davidsontchi6979

    2 жыл бұрын

    @@issas4660 If u get them from Infiniti, u pay $370, a piece. I got mine off Ebay for $49 for Both. Infiniti uses Hitachi MAF meters. Just put that & ur type of car & see what u'll find. Good luck

  • @atbmts6

    @atbmts6

    Жыл бұрын

    @@davidsontchi6979 ty for this

  • @davidsontchi6979

    @davidsontchi6979

    Жыл бұрын

    @@atbmts6 TY for telling whats up

  • @davethayoungan9618
    @davethayoungan9618 Жыл бұрын

    What size is that to remove it 8mm doesn’t fit and my screw was stripped by the previous owner

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    It should be at 8 mm ,try a small Phillips screwdriver and if all else fails use a small pair of channel locks.

  • @pablogarcia8188
    @pablogarcia8188 Жыл бұрын

    Wait for these g37x 13, do both sensors have a metallic side and black side ?

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    yes

  • @Aaryyaannaa
    @Aaryyaannaa4 ай бұрын

    I replaced my maf sensor because I had the code for the sensor the p010B or something like that lol anyways I replaced the sensor & my car is no longer misfiring during driving but now it doesn't always start the first time I start it. I usually have to try a second time & it'll start. I did get the part from autozone, could that be why bc it's not an oem?

  • @TheAutoTeacher

    @TheAutoTeacher

    4 ай бұрын

    Getting the part from AutoZone shouldn't be an issue. Have you checked your air filter to make sure it's clean and when was the last time your spark plugs were replaced?

  • @gsteel98

    @gsteel98

    23 күн бұрын

    These cars are very sensitive regarding sensors. When I replaced my crankshaft sensor with doorman it worked for a few months then gave problems on and off til i put in a denso sensor. The original denso I put in after the original failure was broken by the flexplate so my mechanic swapped a doorman in I didn't choose it. Get denso, hitachi or ngk when it comes to sensors nothing else unless you do research. Z1 has been a tried and true site for aftermarket parts. Rockauto has oem MAF sensors as well I think 60 each

  • @bsandoval19
    @bsandoval192 жыл бұрын

    Did you disconnect the battery or is it not necessary?

  • @TheAutoTeacher

    @TheAutoTeacher

    2 жыл бұрын

    Not Necessary.

  • @davidsontchi6979

    @davidsontchi6979

    2 жыл бұрын

    Not necessary to disconnect it

  • @pablogarcia8188
    @pablogarcia8188 Жыл бұрын

    If I get a new sensor and put it on will my engine light go away if that's the only problem, the sensor? Or would I have to delete the code install the new one then see if it worked???

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    Sometimes it will go away once you start driving , but it's easier and faster to just delete the code.

  • @pablogarcia8188

    @pablogarcia8188

    Жыл бұрын

    @@TheAutoTeacher thanks for the reply, what are some other things I can also do before spraying the sensor, like new filters ? Or such

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    Replace your filters replaced every 15,000 miles .

  • @pablogarcia8188

    @pablogarcia8188

    Жыл бұрын

    @@TheAutoTeacher when you say it's easier and faster to delete the code do you mean by deleting it and putting the new sensor in to wait and see if the check engine light comes back ?

  • @yokingdlow
    @yokingdlowАй бұрын

    I have a P006A, P0101, P0172 should I just clean them or replace it?

  • @TheAutoTeacher

    @TheAutoTeacher

    Ай бұрын

    I would clean it first.

  • @erickagermany970
    @erickagermany97010 ай бұрын

    Im having trouble pulling out the swnsor it self i was able to disconnect the wires and took off the screws but its like the sensor stuck 😩

  • @TheAutoTeacher

    @TheAutoTeacher

    10 ай бұрын

    Not sure why that would be, if you remove the two screws usually it pulls out super easy. There's only a small rubber seal, and it's made of plastic so there wouldn't be any corrosion. Try using pliers if you're replacing it with a new one.

  • @7400_sparksum
    @7400_sparksum7 ай бұрын

    My g35x 2007 drives but at 3k rpm it stalls and acts like a rev limiter could this be the issue ?

  • @TheAutoTeacher

    @TheAutoTeacher

    7 ай бұрын

    Yes. Check your air cleaners for limited flow and then I would clean or replace your MAF sensor. Do you have any PO codes?

  • @Travis-ti3wt
    @Travis-ti3wt Жыл бұрын

    Does anyone know why my bank 1 sensor 1 o2 sensor is throwing a code after replacing it with a new one

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    It may take a couple miles before the ECM resets and shuts off the light, it's easier just to do it with a scan tool if accessible.

  • @iiTempZzYT
    @iiTempZzYT7 ай бұрын

    I have code p0102 and code p0300.. could dirty MAF sensors cause this ?

  • @TheAutoTeacher

    @TheAutoTeacher

    7 ай бұрын

    Yes, a PO102 could be a Faulty mass air flow sensor. PO102 - Intake air leaks - Dirty mass air flow sensor - Dirty mass air filter - Mass air flow sensor harness is open or shorted - Mass air flow sensor circuit poor electrical connection The PO 300 is multi misfire, which is probably caused by your P102 code. I would address the PO102 first.

  • @carlos889574
    @carlos889574 Жыл бұрын

    What size screwdriver you used?

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    You can use an 8 mm socket or a small Phillips screwdriver .

  • @carlos889574

    @carlos889574

    Жыл бұрын

    @@TheAutoTeacher thank you

  • @StrictlyBusiness-de6kg
    @StrictlyBusiness-de6kg2 ай бұрын

    Aye quick question i have a code p0174 and was just wondering how do i find out which side needs to be replaced??

  • @StrictlyBusiness-de6kg

    @StrictlyBusiness-de6kg

    2 ай бұрын

    Also i dropped that screw while messing with it can i replace it?? If so where should i look for one!?

  • @TheAutoTeacher

    @TheAutoTeacher

    2 ай бұрын

    P0174 indicates Bank 2 of the engine has a lean fuel mixture. Drivers side.

  • @TheAutoTeacher

    @TheAutoTeacher

    2 ай бұрын

    For the screw, you can take one from the other side and go directly to a hardware store or the dealer to make sure you get the proper screw.

  • @hoodrichesstimeeatne
    @hoodrichesstimeeatne2 ай бұрын

    I replaced coils and sparks but I’m getting a random misfire

  • @TheAutoTeacher

    @TheAutoTeacher

    2 ай бұрын

    Any PO codes ?

  • @mostafajbeily4529
    @mostafajbeily4529 Жыл бұрын

    Hello I have a 2009 FX35 drives normal However in park the rpm needle goes up and down every 15 seconds or so slightly not by a lot. And when I rev it in park the rpm dips before coming back to normal. Any help? Thanks in advance.

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    It could be a lot of things, I would start with the cheapest things first and go from there. Check your air cleaners, check for any vacuum leaks, clean the mass airflow sensor and when was the last time spark plugs were installed, as you can see the list can go on and on.

  • @mostafajbeily4529

    @mostafajbeily4529

    Жыл бұрын

    6 brand new spark plugs. I was told coils can cause this but I don't think so. It runs fine. It only shivers a bit when stationary.

  • @mostafajbeily4529

    @mostafajbeily4529

    Жыл бұрын

    How do I check for vaccum leaks.

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    Check for any split or deteriorating hose's , or anything disconnected. Some are easier to detect just with your ear, if not you can spray brake clean around the engine and get a variation in the idle and pinpoint where the leak is by doing this.

  • @mostafajbeily4529

    @mostafajbeily4529

    Жыл бұрын

    Thanks alot man. I've done a head gasket change on the engine about a month ago btw. Does that have anything to do withit

  • @lessmilez91
    @lessmilez91 Жыл бұрын

    I’m having a problem where my Infiniti will lose acceleration power while driving but I still have power in the car but if I turn it off the car wont start back up unless I jump it😩

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    Are there any codes ? Sounds like you could have a bad battery with a dead short in it which can cause many different scenarios . I would take it out and have it tested at any local automotive parts store.

  • @lessmilez91

    @lessmilez91

    Жыл бұрын

    @@TheAutoTeacher I got a new battery but it still said voltage low

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    Did they check the output of your alternator ?

  • @DrJames_YT

    @DrJames_YT

    6 ай бұрын

    @@TheAutoTeacherI got the voltage low code

  • @PlutoEats
    @PlutoEats Жыл бұрын

    Which one is the bank 2

  • @TheAutoTeacher

    @TheAutoTeacher

    Жыл бұрын

    Bank two is on the drivers side.

  • @pablogarcia8188

    @pablogarcia8188

    Жыл бұрын

    Hey did your engine light go away after getting a new one ?

  • @juanrenteria4585

    @juanrenteria4585

    Жыл бұрын

    I just got the code today PO101 & PO10B (Bank 2). Im going to clean both sensors tomorrow. Thanks for the video, this really helps. 😊

  • @violetaperez3489

    @violetaperez3489

    10 ай бұрын

    @@juanrenteria4585did it work ? i just got those today

  • @yungrichrico2159

    @yungrichrico2159

    2 ай бұрын

    @@juanrenteria4585was your car having acceleration problem with those codes

  • @gsteel98
    @gsteel9823 күн бұрын

    What size are the bolts holding the sensor in?

  • @TheAutoTeacher

    @TheAutoTeacher

    21 күн бұрын

    I'm told it's Screw - Nissan/Infiniti (08360-41226). You can take one from the other side and try to match it at your local hardware store or proceed directly to your local dealer.

  • @gsteel98

    @gsteel98

    21 күн бұрын

    @@TheAutoTeacher thank you, I'll see today or tmr, hoping my 10mm will be enough to take them out since I noticed they don't have the slit for a screwdriver like the ones holding the tube

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