![]() Each of the software is designed for a specific type of job. Nowadays, there is plenty of ECU tuning software that companies have brought to the market. To tune and make changes in the file we need software to be able to change the lookup table values such as fuel, spark advance, turbocharger pressure. In contrast, BMW M-power advanced engines with newer EMS systems have a larger file size, near 4 megabytes which are 15 times larger because these engines have advanced direct fuel injection or GDI, Variable Valve system, turbocharger and etc. This indicates that the ECU controls a simple 4-cylinder engine. As an example, in Bosch MP5 and MP7, the file size is 128 kilobytes or 256 kilobytes which is quite low. In older EMS systems, the engines were simpler and fewer components were controlled by the ECU. The newer and more advanced ECUs have larger file size. The size of the file that is read is different for various ECUs. It is the binary number that is programmed on the flash, It is actually a bin file. The type of the file that has been read from the ECU is of Hexadecimal type. When you have successfully read the ECU file, you can save the file on a laptop during the final steps of the process.
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