Testing the MAF on your Sprinter T1N or NCV3 with a volt meter.

The MAF or Mass Air Flow sensor is an often overlooked problem. If your Sprinter is slow, weak, sputtering, or stalling this is some things to check.
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[AncapistanVan]

Looks like someone needs a graphing multimeter for christmas. Thanks for the video, very helpful, I'll start checking all the vans that come in with driveability issues.

[ManVan]

Great vid. Thanks!
Would love to see one on how to properly clean MAF sensor. Thanks a million...miles ;-)

[jeremyjohnweaver]

Hey, would these tests work for a 2003 T1N? I have a vacuum actuated boost solenoid on mine. I did the back prove and get a reading of around 1.98 V on idle and it goes UP to almost 4 volts when revved. Bad maf?

[craigholliday]

04 sprinter that has lots of black smoke and no power. the van will not go above 60mph. Any thoughts? I have replaced about every sensor but the MAF, could it be this or something else. I checked all the hoses and they all seem good....thanks in advance.

[vandaweritz]

thanks for taking the time to post these video's you are "THE MAN" when it comes to sprinter vans saving all of us diyers from taking our cars to the stealerships!

[rayzor]

I have an 06 3500, Turbo is not working, Had codes for MAP, MAF and Air Temp so I replaced those sensors. I also put new intercooler hoses on. I have the aluminum resonator replacement on I installed years ago as well. After all that, got a code for low boost. Checked the actuator, it was bad. Replaced it and I can tell it works by unplugging and plugging the MAF, the rod is free and moves the vane arm during testing. When we rev the engine, the actuator does not move at all. You can hear under the van it sounds like air bypassing inside the exhaust, I'm sure is explained by the vanes not being advanced in the turbo. What am I missing now? Could it be the EGR or are there any other sensors tied to the actuator???

[kzeeso]

That was a very funny, perfectly fitting ending to your video. Clever! I am glad you put it in the credits. Made me laugh with you

[davidciupei]

Im getting a charge pressure is too high on my 2005 sprinter I thought it might be the maf or the turbo actuator but the unplugging the naf moves the turbo actuator down. Basically when accelerating it hesitates sometimes so not sure where else to start looking if you have any suggestions?

[salvadorstella]

my sprinter 2011 3.0l smokes a lot, i changed the turbo and nothing happened and i tested the voltage of the mass flow sensor and dont see any signal nor voltage.

[LuisArriaza]

Thanks a lot for the knowledge, I own a 2005 T1n Sprinter 3500, I'm having the same problem when driving and force the speed a little bit I lose the turbo, I have to pull over and turn off and on the engine for the turbo to get back. I'm definitely learning with your videos, they are excellent, short and to the point! I appreciate that, thanks a lot.👍

[itsjaynguyen]

Mine goes limp uphills. Any ideas? Changed some sensors but still nothing

[daveydave]

Mine started acting up a couple days ago, voltage drops like your know good one. I also have another van and swapped with same results. Throwing codes 2067 and 2068 regarding mass air issue. Wondering what else is in line that would cause this 🤔
With the issue I get no turbo actuator movement and black smoke with sluggish acceleration

[fitnessmadeuinc.]

Great video. Im learning a lot by watching. Thank you

[meowler]

My tn1 sprinter has a maf sensor code that wont go away. Comes back even before starting the engine. The code is "2624-001 The permissible limit value for the air mass was exceeded". Its a new bosch MAF and checks okay with volt meter. I have a xentry/DAS with c3 mux. The live data shows 0 value for specified value and actual value with engine idle and off. Air filter is new and i checked for leaks as well. Any ideas? Nice video btw

[stevevanpelt]

Very cool! I'm going to test my MAF on my 03 tomorrow. Had an EGR code, but disconnected MAF and EGR code went away. I might connect my Picoscope just for fun to see what the PWM looks like. Thanks for the video!

[remyfla]

T1N with MAF code. Your video on the MAF sensor said to disconnect it and you should see the lever move: mine DID. When Check Engine light came on the vehicle was running fine, NO Limp Mode or problems accelerating or taking a hill? ANY ideas? THANK YOU

[totallytame]

I am working on a 2005 sprinter I just put new from mercades map and boost pressure sensors and it would not start till I unplugged the boost pressure sensor. Can u help? Codes were 0069 then 0106 now boost pressure sensor because I have 2 unplug it.

[Trick]

Do you know what I should do next? When I unplug the MAF the actuator does not move. I have already preplaced the MAF & EGR. No problem is no turbo at all. Van worked previously, but van wasn't used in 6 months and now no turbo.

[cltservices]

Hello, I’m getting a P0101, I clear the code and comes right back when I crank it. I did the disconnect test but it seems to work backwards, if I disconnect the sensor the rod goes down. Any ideas? Voltage drop seems ok, any help would be greatly appreciated, just got this van is a 2005 2.7 and it was neglected, is only got 81k miles and I’m trying to get it back to decent shape. Thank you

[dogbone]

Just to add more confusion; I saw a 2021 sprinter source discussion re: t21 recall (if performed) may require a “teach-in” after the recall so the MAF works properly. The was more things in the article that I don’t understand, but head over there if you need more info.
The ecu has to relearn.
This got me thinking when the MAF sensors were placed in different sprinters.