What to Do After Replacing Mass Air Flow Sensor and Engine Light Still On Code Will Not Clear

If you have replaced a MAF (Mass Air Flow) sensor and the engine light stays on, or the code comes back, here are the other things that can cause MAF sensor codes.

*Be sure to clear code with scan tool or removing a battery cable.

Other Possible Causes of a MAF sensor Code
⦁ Dirty Air Filter
⦁ Wiring Open or Short
⦁ Blown Fuse
⦁ Vacuum Leak
⦁ Clogged Catalytic Converter
⦁ Faulty MAF Sensor

MAF Sensor Codes That Will Not Clear:
P1101 Intake airflow -incorrect
P0100 Mass or Volume Air Flow Circuit Malfunction
P0101 Mass or Volume Air Flow Circuit Range/Performance Problem
P0102 Mass or Volume Air Flow Circuit Low Input
P0103 Mass or Volume Air Flow Circuit High Input
P0104 Mass or Volume Air Flow Circuit Intermittent

By using this information user assumes all risk of use.

[Fit.For.A.Firefight.]

This guy has good info but he does not answer your questions, so don’t waste your time in asking. Just Keep searching.

[thomasspero]

Excellent video. I have a question for you. I have a 2012 Rogue with a MAF problem p01 01 code. The Nissan dealer replaced the MAF. I replaced the air cleaner. I did not replace the PCV valve yet. The dealer I go to tells me they cannot fix the problem any more than they have because they do not have a Master Technician??? I am going to have to travel a ways to get a dealer with a Master Technician. The engine light has gone on twice now. It is supposedly fixed now. If not and the light goes on again and the car seems to run fine I want to turn off the engine light. I purchased a Walmart Hyper Tough HT 100 code reader. It is not much on instructions. It connects with your phone via Blue Tooth to give an explanation of the code. I do not need an explanation and I just want to turn off the engine light. My question is, do I have to use the Blue Tooth feature with the HT 100 or can I just plug it to the plug in the car, turn the ignition to on, read the code, and push the red button to clear the code?? Thank you, Tom Spero

[hunteryt]

hi, i got my valve cover gasket change on my bmw and it started showing these codes. so i was wondering if these codes happened cuz of that change?

[isaacgonzales]

what if it is not giving you a code but still running like the sensors bad

[anngordon]

We took my 2016 chevy Tahoe because of check engine light and it came up p0101...we replaced the mass air flo sensor and had it re set and about 20 minutes later it came up again with same thing so replaced it and it was good for about 1 day then check engine light came on and dame code...took to mechanic and he checked with his computer and sane code but he also checked wiring and other stuff and had to get another sensor...replaced it and lasted about 3 hours and then check engine code came up again with my car acting funny so went home and called him...he can't get it in to check because his computer is down and I'm frustrated because I've been without a vehicle for 3 weeks and need it to get my grandson to his appointments from being a cancer patient...
What do I do now?

[TherealClipology]

could an p0172 be related to any of this info

[libradamontano]

We replaced maf sensor and enginr filter and the car ran amazing. A few hours later check engine came on and the car started driving rough again. 😢 what happened? 😢😢

[KATRINASOLDAAT]

I changed my air sensor but the car not right.

[garymarble]

Comes and go runs OK for awhile and then start run bad again Map senor replace

[Heather-egrq]

Got a code that ignition coils were clogged. Ran some cleaner through. Light went off and then came back on. Changed the fuel filter and it went off. Then it popped the mass air flow censor. Changed the maf censor. Disconnected the battery. Now we are still getting the code. Anybody else ever had this on a Ford Focus. Thanks.

[atos.nympha]

Going through all Mercedes fuse is a project lol

[muskrat]

Stop buying German design machines been fighting a 2007 Volkswagen bug pH 0411

[Delfi]

You still need to drive the vehicle for at least 60 miles so computer goes through it’s proper preset run cycles, even if you clear the codes and you are trying to pass smog it will not pass until you complete the required drive cycles..

[Jayk]

So i changed it and my car won't stay started

[radical]

mass flow air sensor fault keeps coming on after I changed the sensor and cleared the code. I have a 2012 Toyota Tundra. What could be the problem.

[rtw]

You all make some great videos. Keep it up! You get right to the problem and possible solutions. Thx, Wiliama

[jmb-bjgs]

I'm sorry this may seem a little of a long text .Originally I had a lean code p0171 back in March. Looked for vacuum leak none to be found that I know of . Car still ran good . As time went on, for about a month now the car began having poor acceleration, esp uphill . Finally the CEL went on p0101 maf sensor. Other leaned didn't come back . Took MAF sensor out, cleaned it put in back in, car still ran rough, still with theCEL on w MAF code, p0101. Only code. . Car running still weak. Yesterday CEL went off while idling, then it really ran shitty, even less power, worse than has been . Cleaned MAF sensor again . Car finally ran normally , for 5 min. Took a quick drive .then the CEL went on again, car ran rough not as bad as before , but noticeably different . Keeps messing w me . ! No other issues, codes, etc just the poor acceleration. ??

[ErigFlorenciaPauler]

At this moment I have the original filter but when I disconnect the maf sensor and reconnect it the check engine light comes back I have the scanner here please let me know what to do

[Throughthelurkingglass]

2004 BMW 325I. Only code I have is MAF circuit high, cats are clogged. Only reason i can think it throws MAF sensor is back pressure coming through EGR valve into Crankcase. No cat code whatsoever.

[VShiesty]

I’m getting o2 sensor codes for bank 2 I changed my Maf sensor but engine light still on