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Thread: C0903, lmm maf limits for p0101

  1. #1
    Lifetime Member killerbee's Avatar
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    Default C0903, lmm maf limits for p0101

    In the factory files I have looked at this "P0101 Upper limit threshold" is set to 0.00.

    I would expect a P0101 every time. Does this make sense to anyone else? MAF tables max out at 64 lb/min, so I would expect to see a value that high in C0903
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
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  2. #2
    Forum tyhee Site Admin GMPX's Avatar
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    The LMM file I am looking at has this set at 555 g/sec. It might be an OS specific thing, what is the OS you are looking at?

    {C0901} P0101 Lower Limit Threshold 1.666662 Grams/Second
    {C0903} P0101 Upper Limit Threshold 555.554000 Grams/Second

    The same values in two files I looked at.


  3. #3
    Lifetime Member killerbee's Avatar
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    I am using imperial but 12628594. The bulk of the LMM fleet. I will check others also.
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
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    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
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  4. #4
    Lifetime Member killerbee's Avatar
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    I did find another OS with a positive value that DOES makes sense. But so far all ...594 OS files I have show 0.0. I checked 4 files from 07-08. This only came up because I am working a P0101 issue after an EGR/DPF del. But these trucks don't throw P0101 with the stock C0903 value of 0.0.
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
    Custom Tuning Services
    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
    EFILive's first VGT "Software Wastegate Tune"

  5. #5
    Forum tyhee Site Admin GMPX's Avatar
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    Ok thanks Michael, I'll check out the OS you mentioned.


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