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This means we seperate topics like flashing tools, tuning programs, bootmode activivation, etc. which are the same for all ECU models If you use knowledge of this site for your tuning business, please consider a small donation to support the project, thank yo

Welcome to the first steps of tuning your Siemens MS4X ECU. As you already know, the content of this website tak ...l details you have be aware of, '''before''' you proceed with flashing and tuning your engines heart. So the first thing is to determine what ECU is built in

=== Software & Tools === ...s approximately 128kb in size found from 0x40000 to 0x5CF7F. However some tools such as the Frieling Racing flash tool will write a full 128kb from 0x40000

...ksums on the fly this checksum bypass is only needed when using old legacy tools to flash a calibration section.''' Especially the calculated MAP and filtered load values will improve tuning since you will be able to see what load the subsystems are really using.