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Thread: P0101 MAF range performance

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  1. Re: P0101 MAF range performance 
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    Quote Originally Posted by bebetositu View Post
    I went to the garage again to change the boost pressure sensor on Friday, but the guy told me that the IAT temp was at 130 C before changing the IAT sensor and the temp drop to normal after the IAT sensor changed, he ran a scan for me and shown me the temp was good, around 19 C something, all other data showing fine, can not see any problems with the car, only the P0101 code still there, so he said is no need to waste more money to change the pressure sensor, sensor returned. I am having a ECU remapping guy to come for a visit today, he will run a diagnostic, there might be a fault in the ECU, hope he could find it.
    The IAT sensor is part of the MAF sensor, if that cured the temperature issue then you probably have 2 faults. Unless the original fault wasnít cleared in the log of course. But Iím sure thatís not the case.
    Hopefully the ECU guy can spot something.
    Let me know how it goes.
     
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  2. Re: P0101 MAF range performance 
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    Quote Originally Posted by Muckie1 View Post
    The IAT sensor is part of the MAF sensor, if that cured the temperature issue then you probably have 2 faults. Unless the original fault wasnít cleared in the log of course. But Iím sure thatís not the case.
    Hopefully the ECU guy can spot something.
    Let me know how it goes.
    The ECU remapping guy came yesterday morning, he updated the ECU and cleared the code off the ECU, he said all the parts working fine in the car, just need to update the ECU and clear code using the Remapping tool, which the garage and auto electrician don't have this kind of tool, I have done a 30 miles motorway last night and another 30 miles this morning, so far no lights, I think he might have solved the problem. I think perhaps the ECU of the A1 is very sensitive, it needs to be updated after new sensors fitted, but anyway, I am happy the problem has been solved, I will give it 2 more days to monitor the light, hopefully I don't need to do anything any more.
     
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  3. Re: P0101 MAF range performance 
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    So the Garage wasn't able to clear the codes?

    In that case the fault was the MAF/IAT sensor as the 130C disappeared when it was changed.
    Sounds like a result !

    When you say he updated the ECU what did he update it to?


    Hope it stays fixed.
     
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  4. Re: P0101 MAF range performance 
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    [QUOTE=Muckie1;1091012]Hi Matt,
    Same symptoms by the sound of it.
    Did you run VCDS on it?
    Take a look at mine earlier in the thread, I had IAT at 130C, do you have this too?

    Let me know what IAT temp is, that is key.
    Also, out of interest does your fuel cap lock work? Lock the car and push open the fuel cap cover.
    Let me know what you get.

    To Mackie1
    Hi Iím suffering with the same problem . Just wondering why have you asked a question about fuel cap locking?? Is it related to issue wit bad maf senor?? Thank you very much
     
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  5. Re: P0101 MAF range performance 
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    Do you have a faulty MAF?

    It was really strange, VCDS was showing the fuel cap lock as a short circuit to ground.
    It may have been a coincidence, but when the Boost pressure sensor was changed the fuel cap lock was also fixed and has been ok ever since.

    VCDS showed the following

    1 Fault Found:
    00332 - Control Circuit for Tank Flap
    007 - Short to Ground
     
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  6. Re: P0101 MAF range performance 
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    Hi Muckie i have the same problem with my daughters 2014 a1 1.6 diesel any help would be appreciated
     
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  7. Re: P0101 MAF range performance 
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    Quote Originally Posted by subparts View Post
    Hi Muckie i have the same problem with my daughters 2014 a1 1.6 diesel any help would be appreciated
    Have you run VCDS? What codes do you see?
     
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