PDA

View Full Version : C0903, lmm maf limits for p0101



killerbee
September 12th, 2018, 07:47 AM
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

GMPX
September 12th, 2018, 08:37 AM
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.

killerbee
September 12th, 2018, 08:41 AM
I am using imperial but 12628594. The bulk of the LMM fleet. I will check others also.

killerbee
September 12th, 2018, 08:59 AM
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.

GMPX
September 12th, 2018, 09:52 AM
Ok thanks Michael, I'll check out the OS you mentioned.