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Author Topic: MED9.1 biger maf calibration  (Read 224 times)
teobolo
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« 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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« 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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IamwhoIam
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« 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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teobolo
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« Reply #3 on: December 07, 2017, 01:17:33 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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« Reply #4 on: December 07, 2017, 01:20:08 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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« Reply #5 on: December 08, 2017, 03:59:14 AM »

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 .

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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« Reply #6 on: December 11, 2017, 06:12:18 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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