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Author Topic: MED 9.1 MAF PROBLEM  (Read 1075 times)
ABEPerformance
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« Reply #15 on: January 20, 2026, 02:08:24 AM »

hi,look at this log fixed mshfm some more and managed to get here ! im so happy ! also i see that rail didn t follow the requested from ecu aybe because i forgot to modify KLPRMAX?
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cherry
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« Reply #16 on: January 20, 2026, 02:45:29 PM »

Sure you need to change KLPRMAX, it´s rail pressure limiter.
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ABEPerformance
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« Reply #17 on: Yesterday at 02:22:25 AM »

thank you cherry you helped e a lot ! world needs more people like you and for all the people that wanna rescale their MAF do as cherry said ! >
1. find out how bigger you maf housing is
2. calculate and add to MLHFMTPH (eg. 26% in my case)
3. disable LTFT by NOLRA !! very important !
4. KFKHFM SET ALL 1 !! IMPORTANT
5.do a log 032,031,001/002, watch lambda control,partial load corrections,idle correction !
6. fine tune MLHFMTPH until you are very close to small corrections eg. +6/-6 depends but you get it
7.from here on you can correct with KFKHFM ,watch your logs and correct according to what lambda control says !
8. enjoy your car !
i wanna give a special thank you to all the people that involved and gave their time to help ! thank you (cherry/fknbrkn/Dande)
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