Auto Repair & Maintenance : How to Know if a Mass Air Flow Sensor Is Bad

Auto Repair & Maintenance : How to Know if a Mass Air Flow Sensor Is Bad

One way to check to see if a mass air flow sensor has gone bad is by tapping on the engine when it’s running to see if it stumbles. Find out how to remove a …

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Mobile Matt says:

I got my mass air flow sensor from vehiclevalueparts.. I think they’re high
quality and a whole lot cheaper than the junk yard or dealer. Good video! 

yozgatlicaner says:

Stay away from oil filters ! if you want to drive fast get a sport car but
do not buy oil filters !

yozgatlicaner says:

Stay away from oil filters ! if you want to drive fast get a sport car but
do not buy oil filters !

CHARLES BRONSON says:

Hi mate I have a ford 5.0 like u guys have in ur mustangs I’m having dramas
things point to the maf sensors and I done this test n it goes up still ppl
say it’s the maf what other test is there and what other possibilities can
it be 

Chul McGuire says:

Thanks for the video and tip!

Simon Mujanayi says:

J’ai une BMW X5 V8 dramatique moteur à essence mais qui a un problème d’air
flow. Le bruit du moteur n’est plus bon au démarrage. Quelle solution
apporter à ce problème ?

Rabbitt80 says:

What is proportional to the opening of the throttle? .5 vdc per 1000 rpm?

jeremy knight says:

Thanks for sharing your knowledge

6thewolf says:

Good informative video, cheers!

imlsh1 says:

Thanks for sharing this information.

Steve Allred says:

I Have a 2004 ford f-150 and it is running very poor when idling ..when i
unplug the Mass Air Sensor the truck shuts off ….Can you tell me why
please ……Should i replace the sensor thanks

Miguel Martinez says:

Great video just changed my mass flow sensor and this video helped me
correctly diagnose the problem thx

gotengines says:

very helpful. didn’t know ehow was on youtube until today.

DMM9786 says:

i have a 96 tahoe and changed the mass air sensor because the truck kept
shutting off at start up and code was for maf. after i installed new maf it
ran great for about 45min then went back to shutting off and rough idle . i
went online and someone said to check egn1 fuse> it was blown then i
replaced it> it last for 30min then blew again it keeps blowing that fuse
what do i do??? any ideas?? thank you!!

hp11208 says:

@president how u know that were u having sex with him lol

jrag1000 says:

tapping on the “engine” or tapping on the “maf housing?” Jesus.

ForRealzMan says:

my 2005 Nissan quest have two trouble code P0113-P0183 , i already replaced
code related sensor , but code is still showing up, when i unplug battery
wires for refresh code and start my vehicle code not appear but when i turn
off engine and start right way again then codes pop up again. Bad sensor
issue is closed because sensors are replaced already , problem is some
thing else, need help

MuckBluff says:

so if its broken then it is bad? right??

equity006 says:

How about a sign of “out of breathe?”

connor young says:

Good stuff, cheers!

number1STEELERBOYZ says:

I have a 1990 Ford Aerostar 4.0L V6 and my engine is running very bad and
lean, but when I unplug the mass air flow sensor, it runs great. So I got a
new mass air flow sensor, but it still is running very bad. What do you
think is wrong?

William Barker says:

I appreciate the practical tips on verifying if the sensor is bad or not.

tom says:

@soldierboy2525 if it runs fine after taking off the MAF then yes this
indicates a bad MAF. repair, clean or replace.

telcote says:

I just wanted to like this twice

Emily Barber says:

I dont think these inappropriate comments are necessary… this is a
helpful video about cars, talking about sex just seems irrelevant.

jose hechavarria says:

the best way to check the air flow sensor is using scope volt meter is not
accuracy.

alex huerta says:

hello. sorry someone can tell me something about a 96 gmc sierra I have a
problem with the maf, or code 102 circuit and ahir camvie the mass flow and
run that code in the troka tiemmbla occasions when this cold, please
appreciate Selos saver need enough for q medijo someone there could be a
short, but nose, because I ¨ ‘?

jeffrockr says:

my mass air flow gone out of its cylicone tube i think because there was
too much pressure… and the car runs and the mass air flow seems to stay
in its place when i dont completely put it in the cylicone tube… can
somebodyexplain me how i can put it all in without making it pop out its
tube

MrJThao says:

duralast gold battery!

snoffuful says:

my car revs up to 5k rpm and climbing by itself i turn it off and turn it
back up and still revs up pretty high by itself could this be my maf
sensor? i have a nissan 92 240sx ka24de. i also hit the gas but wont do
anything.

number1STEELERBOYZ says:

@10MickeyMouse OK, thank you! I’ll start looking!

jamila rasheem says:

can a bad maf sensor cause your vechical to shut down while driving or
parked i have a 97 bonneville and autozone did a diagnostic and the maf
sensor came back code P0102 can this be the real problem? thanks

soldierboy2525 says:

can a bad air flow sensor cause a low idle? my bmw is has a low idle
problem and I disconnected the plug to the air flow sensor and it ran much
better but im sure i cant leave it like this should I get a new sensor ?

colinstingeray says:

on my 2008 chevy cobalt just the other day when i started it had horrible
sputtering i ran the computer on it and it said it had a misfire p0300 so i
replace all the spark plugs started it up same thing going on so i was
getting a little nerves ya i thought air flow could be a problem so i was
looking around about seen this video about unplugging the sensor so i did
and started it sound like a brand new motor! thanks a lot sir!

4thsubaru says:

this was very helpfull thanks

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