MED9.1 biger maf calibration

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teobolo

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	MED9.1 biger maf calibration « on: December 06, 2017, 01:22:41 AM »

Hi to all , i m about to calibrate a 90mm custom maf in a Audi s3 -tfsi car .I have read the ME7.5 wiki in which maps to touch but i think i m missing somethinng.To be more specific i have not manage to found any MLHFM map on the med.1 i only found KLAF & MSHFMTPH should i start from those maps? and then finalize idle and low loads corection with KFKHFM ? i m open to any income .


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vwaudiguy

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	Re: MED9.1 biger maf calibration « Reply #1 on: December 06, 2017, 09:48:11 AM »

MED9.1 does not have the map MLHFM. I can't comment 100% on the proper method (yet) but I should have some answers shortly. Did you search through the forum yet?


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"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."

IamwhoIam

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	Re: MED9.1 biger maf calibration « Reply #2 on: December 06, 2017, 10:32:02 AM »

MED9.1 2.0 TFSI has MSHFMTPH, because it uses mshfm_w instead of ml_w. Also the MAF output isn't a voltage anymore (uhfm_w) but a PWM signal (tpmshfm_w).


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I have no logs because I have a boost gauge (makes things easier)

teobolo

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	Re: MED9.1 biger maf calibration « Reply #3 on: December 07, 2017, 01:17:33 AM »

Quote from: vwaudiguy on December 06, 2017, 09:48:11 AM

MED9.1 does not have the map MLHFM. I can't comment 100% on the proper method (yet) but I should have some answers shortly. Did you search through the forum yet?

i have search but i have not found anything


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teobolo

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	Re: MED9.1 biger maf calibration « Reply #4 on: December 07, 2017, 01:20:08 AM »

Quote from: IamwhoIam on December 06, 2017, 10:32:02 AM

MED9.1 2.0 TFSI has MSHFMTPH, because it uses mshfm_w instead of ml_w. Also the MAF output isn't a voltage anymore (uhfm_w) but a PWM signal (tpmshfm_w).

so i should start with MSHFMTPH ? Should i calculate how much % biger is the maf housing diameter accoriding to oem housing and then multiply that value to MSHFMTPH?This is the way i calculate biger maf calibration in to japanese cars .


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littco

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	Re: MED9.1 biger maf calibration « Reply #5 on: December 08, 2017, 03:59:14 AM »

Quote from: teobolo on December 07, 2017, 01:20:08 AM

There is a dos app that will load the map automatically find the maf scalar automatically , ask for the old size and the new size and increase and dump the modified file..


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teobolo

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	Re: MED9.1 biger maf calibration « Reply #6 on: December 11, 2017, 06:12:18 AM »

Quote from: littco on December 08, 2017, 03:59:14 AM

There is a dos app that will load the map automatically find the maf scalar automatically , ask for the old size and the new size and increase and dump the modified file..

can you point it to me where to find it ?


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focalpoint519

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	Re: MED9.1 biger maf calibration « Reply #7 on: December 13, 2017, 09:48:22 AM »

maybe not usefull for your application, but good for voltage vs g/s maf rescaling

https://github.com/vimsh/mafscaling

http://www.romraider.com/forum/viewtopic.php?t=10481


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vanrhj

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	Re: MED9.1 biger maf calibration « Reply #8 on: March 20, 2018, 03:44:25 AM »

Is your maf calibration sorted?


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teobolo

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	Re: MED9.1 biger maf calibration « Reply #9 on: March 22, 2018, 01:05:45 AM »

Quote from: vanrhj on March 20, 2018, 03:44:25 AM

Is your maf calibration sorted?

Yes, with the maps o mention and some fine tuning from FKKVS it is fine


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