Web-based ECU tuning editor for ECUs and TCUs mainly Simos12/18/DQ250. A2L/XDF/JSON definitions, 3D map visualization, compare mode, BinToolz patch support, and ESP32 BLE datalogger. Supports 8V0906264, 06K906071, 0D930001 and more.

Simos 12.1 to Simos 18.1 ECU swap guide for Audi A3 8V EA888 Gen3 1.8 TFSI. Covers bench read, boot password extraction, and immo-off flashing using Raspberry Pi 5 + ESP32. Includes SAP/EVAP patches for European vehicles and Pi 5 workarounds for bri3d's TC1791_CAN_BSL toolchain.