P0101 Fault won't clear, even using Icarsoft v3.0

[webberjim17]

Hi All,
I appreciate any help.
C Class c250cdi 2013 (W204)
Car is in limp mode, P0101 fault code. I have replaced an air-intake hose as it had a very tiny pin-hole, but I cannot get the fault code to clear. When I re-set it and run the check again before the engine re-starts, the fault still shows.
When I clear the fault and start the car, the EML has gone but th car still won't rev above 2,500rpm.
Do i need to do any further adaptions etc to tell the car that I have fixed the likely fault? Or is there likely to be an additional fault that is being picked up, even without the engine running?
I am using Icarsoft MB V3.0
Many Thanks.

 

[KillerHERTZ]

The MAS might be at fault also...

 

[webberjim17]

The MAS might be at fault also...

Thanks for the info. When the fault occurred, it was under heavy-load (overtaking), and there was a long hesitation and then restricted power, without the EML. I had replaced the other intake hose last year when the same thing happened so I thought I would take both hoses off and inspect. the one i hadn't changed had a TINY hole but had an oily residue at the point of entering the engine so I assumed this was the fault.
It it was the MAS that is the issue, would I be able to see this under the "Live Data"?
Thanks,

 

[Supernoodle]

There should be a service function to run when you replace air filter and MAF. I'm guessing you only need the former.

If you've had a leak for a while chances are the air mass adaption has compensated for the leak, you've then fixed but the adaption still applies, pushing it out of range.

 

[WilliamParsons]

When replacing the air filter and MAF sensor, it's essential to perform a service function, primarily for the MAF sensor. If there was a long-term air leak, the air mass adaptation may have compensated for it. After fixing the leak, the adaptation values may need adjustment to bring them back into the correct range.

 

[webberjim17]

There should be a service function to run when you replace air filter and MAF. I'm guessing you only need the former.

If you've had a leak for a while chances are the air mass adaption has compensated for the leak, you've then fixed but the adaption still applies, pushing it out of range.

Thank You. I will look at which service options I have on my Icarsoft today.

 

[webberjim17]

There should be a service function to run when you replace air filter and MAF. I'm guessing you only need the former.

If you've had a leak for a while chances are the air mass adaption has compensated for the leak, you've then fixed but the adaption still applies, pushing it out of range.

Thanks, i'll take a look at the service functions today and see if I have that.

 

[mersum1es]

See pressure sensors readings at engine not running, if they vary from atmospheric, car thinks there should be flow but mass flow sensor is not showing any.

 

[webberjim17]

Thank You all for your help and suggestions. In the service mode, I reset the Lambda sensor and everything has been fine for the past 48 hours!