What to Do After Replacing Mass Air Flow Sensor and Engine Light Still On Code Will Not Clear
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- čas přidán 25. 03. 2023
- 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
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You all make some great videos. Keep it up! You get right to the problem and possible solutions. Thx, Wiliama
Good video. Straight to the points.
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.
This guy is really good❤
07 328i sedan p116e cleared code and it came back and rpm’s jump when pressing the brake pedal. aswell as the car almost stalls when holding brake pedal on startup.
could an p0172 be related to any of this info
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?
2014 Escape 1.6 replaced the map senor but run good for awhile then go back running bad
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
Thanks
I have a 2020 Nissan kicks put new mass air flow sensor in light went off but came back on days later help
Updated pcv valve is the cure,your welcome
I still get the code after changing the MAF and the oxygen sensor next to the MAF. Also put in a new air filter. But I have not installed the oxygen sensor that goes after the catalyzer under the car. Mazda 6 2013.
I replaced the MAF censor and had it reset but the next day when I filled up with gas it came back on. So don't know what to do really. I will check the air filter and see what that looks like. And see where that fuse is located. But any help would be appreciated. Thanks for the video
What was it?
@@RA-ie3ss Still dwindling it down. However I did replace the intake manifold gaskets and pcv valve with new spark plugs or rather coils on my truck and now it has alot more power. The engine light has stayed off for now. So I'm going to replace the fuel pump and fuel filter. Slap on a new caddiliac converter with new exhaust system. Also replace valve cover gaskets. Possibly the purge valve dont know on that one yet. But I will say the trucks driving pretty good now.
what if it is not giving you a code but still running like the sensors bad
That might be a misfire check spark plugs and ect
I’m getting o2 sensor codes for bank 2 I changed my Maf sensor but engine light still on
test your o2 sensor
garnered it's a bad o2 sensor
@@d34d_lokiii93 thanks I’ll try that
So i changed it and my car won't stay started
Same issue here. It runs for few minutes and shuts off. Were you able to resolve it? If so please help me out. Any help will be appreciated.
Thank you so much for the info. I'm going to check into this I'm getting p106 map sensor code and I've already bought three for this vehicle it's a 2012 Kia forte but that is not the problem cuz I'm not buying a fourth one I'll keep you posted
Hi, did your problem get a solution? I'm currently on 2nd mass air flow sensor on 2011 kia sportage.
I replaced my maf sensor ive cleared the code an drove an the check engine light came back on an its the same code for maf what do I do next
What did you do?
I have a 5.3 silverado 2011 and i replace the air mass sensor and the filter and its still has the problem when i cold start the truck its makes the sound and as i drive it does it very little then after a good while it goes away but it has been doing it lately and i have already drove it 60mph
Someone please help😊
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. ??
It needs to be troubleshooted, but it looks like there is an intermittent problem with the MAF sensor. It likely is a failing MAF sensor or an issue in the wiring such as an open or bad connection.
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?
You can still drive the vehicle with a p0101 code. You'll fuel won't be as good but it's not going to destroy your truck unless the engine is running very lean or rich for extended times
Try leaving Maf Sensor un- plugged! Still will run! At least on my 02 Mitsubishi lancer 2.0
Yea u can drive with it unplug it may run better
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.
The air filter might be dirty so try replacing that
Same with new air filter replace maf code keeps come back I guess time to check the wires
Take a shop vac and suck out all the shit
My 2011 scion did the same changes as u alsoaor filter & some spark plugs & still the light turns on the mechanic says everything looks good
I'm just getting a mass airflow sensor code. I replaced it once and it came back sent the sensor back. I thought it was bad gas so the light came back on and I ordered another mass air flow sensor the light went off but came back on. I sprayed some seafoam in the induction and the light went off but came back on
i have a 2019 frontier, getting p0101 code, been to dealer 3 TIMES!! new sensor installed, 3 days later had to come back because "idle air relearn" didnt take. BS, then they send me on my way again, and 3-4 days later, BOOM again. Back to dealer. Now they want to relaplce the throttle body? I'm thinking more electrical.
@@taylorb21554did you ever get it figured out ?
@@taylorb21554did you get it figured out? Have taken my car in 5 times (2 different shops) in the last month for this. Lights came on again so I took it to autozone for a scan and of course, MAF. Hopefully this video will give me a clue.
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? 😢😢
Me too!!!🤕
Did you fix it?
@polargc8990 unfortunately no. The check engine light disappeared, but the problem is still there.
Im having same problem that's funny @libradamontano2340
Cleaned the maf sensor and after that check engine light came on. Why? Check engine light was not on before.
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.
did u ever figure out what was wrong?
So I have a 2008 mazda5 with around 148k miles and these are the codes I’m getting:
P2188
System Too Rich at Idle - Bank 1
System Too Rich at Idle Bank 1
Secondary DCs
P2178: System Too Rich Off Idle Bank 1
P0101 : Mass or Volume Air Flow Circuit Range/Performance
P0841-FF: Transmission Fluid Pressure Sensor/Switch A Circult Range/Performance Concern
I have taken the MAF sensor out and cleaned it and let it dry real good and put it back but I didn’t reset the codes.
The check engine light did turn off but later that evening came back on.
I haven’t tried to pull code again but would anyone know why it might have come back on?
Same situation except Bank-1 / Bank-2 Lean
Replaced MAF sensor & reset codes. The light came back on the next day & wouldn't start easily ( 2017 Toyota Highlander )
I'm lost at this point & my Bank account is also getting lean
@@justin8750 same with the bank account. I ended up cleaning the throttle body the best I could and that has actually fixed it for now. It was only a half assed job, so I’m gonna have to figure out how to do a full job here real quick.
N80 purge valve maybe
@@AmbA4 I ended up replacing the MAF sensor and it’s still throwing basically the same codes,
System Too Rich at Idle Bank 1
Secondary DTCS
P0455: Evaporative Emission System Leak Detected (gross leak/no flow)
P0456: Evaporative Emission System Leak Detected (very small leak)
P2178: System Too Rich Off Idle Bank 1
P0101: Mass or Volume Air Flow Circuit Range/Performance
P0335: Crankshaft Position Sensor A Circuit
P2405: Evaporative Emission System Leak Detection Pump Sense Circuit Low
P0841-FF: Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance Concern
It also says that it needs a new EGR vacuum Solenoid… at this point idk what to do. If I keep driving it things will obviously get worse and break other parts but I don’t have the money for a shop and I don’t exactly have the knowledge to fix it myself.. and right now I can’t just park it somewhere.
I changed my air sensor but the car not right.
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..
What if I’m misfiring still?
Do I drive said 60 miles still ?
You wouldn't think so with the crazy shifting, but it does get better after driving... I didn't know clearing the code was the problem. Appreciate it
Thanks for information
Going through all Mercedes fuse is a project lol
6fccc
Comes and go runs OK for awhile and then start run bad again Map senor replace
Ugh...I'm on my 3rd sensor this one is brand new...Just coded again...About to go find out what my lucky numbers are..I have court tomorrow for an inspection sticker and i cant pass...Everytime i fix something, something else codes...I'm losing my shit
I replaced the upper and lower intake manifold gaskets on my 2004 Supercharged 3800. The project went on for 4 months.
After reassembly, the engine ran like crap. It turned out to a vacuum line that ran to the MAP sensor (at the back of the engine). I tossed it because it was falling apart and then I forgot all about it. I capped the mystery vacuum port until I could find it’s destination. Bad idle and stalling. GM had relocated my MAP sensor, on a L67, behind the engine so, un-hosed, it was sending strange values to the PCM. There was no vacuum leak because I capped the mystery port. It passed all of the vacuum-leak tests.
I finally read up on the MAP sensor purpose, found it , and plumbed a new line. Mine was reading ambient atmospheric pressure, not the intake manifold vacuum.
It threw a P0101 Code. Bad values from the MAP Sensor with no vacuum, in my situation.
How do u check a maf sensor? For a 2011 suzuki kizashi
Just got a brand new maf sensor and sensors still come up and car sometimes won't start. Even after the code went off on the scanner. Or how do u check to see if the fob is the problem. Changed the fob battery a few months ago.
Stop buying German design machines been fighting a 2007 Volkswagen bug pH 0411