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2048kg/h MAF Sensor Switch
When your engine setup needs measuring mass airflows higher than 1024kg/h you have to modify the program code of your ECU.
Modifiying program code is dangerous and should only be done by people who knows how to recover a bricked ECU.
You have two options to change the MAF limit:
First way is the recommended way, upgrade to firmware version 0110C6 on MS42 or 430069 on MS43 and use the MS42 / MS43 Community Patchlist.
Second way is to apply the patch manually with a HEX editor.
Therefor you have to change the bytes listed below according to the software version from "4E" (1024kg/h) to "3E" (2048kg/h) and set the conversion factor in the TunerPro MAF table to "0.03125*X"
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Either way you have to recalculate the program code checksums inside the 512kByte file even if you use files with deactivated checksums for the calibration area.