Med91 Multimap ((free)) Now
Adjust the main.py entry point file to target your custom .bin name and run the script to generate the newly multi-mapped variant. 4. Calibrate the New Map Slots
Only tuners experienced in MED9.1 software architecture should attempt this to ensure that map switching does not lead to sudden engine damage. Conclusion
Essential variables to locate include B_fgr (cruise control status) and the vkKraQu itself. adaptation.md - MED9.1-Multimap-Tool - GitHub med91 multimap
Tuners locate unallocated space inside the flash ROM. Custom assembly logic is inserted to intercept map lookup commands. Instead of reading the factory table address directly, the ECU checks a variable stored in RAM reflecting the active slot index. 3. Map Replication
The effect of switching the vkKraQu variable is not limited to a single parameter; it is far-reaching. When the MED9.1 Multimap Tool is applied, it causes the ECU to switch a comprehensive set of maps. The specific maps that are toggled between their 0_A and 1_A versions on the 1Q0907115C binary include critical tables responsible for: Adjust the main
For vehicles lacking cruise control hardware, calibrators write switching routines utilizing the accelerator and brake pedals:
What it does well
Unlike a single static tune, multimap technology utilizes the "free space" (roughly 30-40%) in the factory ECU's flash memory to store additional code and map complexes. This allows the ECU to toggle between different sets of parameters for: Revlimit ECU Tuning Boost Pressure