Audi A3 8P , 2006y. i hacked the engine CAN Bus behind the gateway, by esp32-3 + MCP2515+Display ili9488.
I programmed also an esp32 for another car, to log data by iso 9141. a totally other story, technical.
I dont know how to assembly the ECU. What i need for this (software + data cable)? WinOls ?
I need the immobilizer after reflash, set again on the my keys yes ? i dont have the login code for the immo.
I would appreciate it very much, when you will give me a helping hand. Maybe by PN.
You would need a tool that support MED9.1 ECU to read / write. If the ECU is matched to your car, you won't need to resync the immobilizer. Cheap tool would include MPPS (obd2) or Kess clone (boot). There might be some alternative for bench reading under 200usd
Disassembly would be done through IDA or ghidra (free), they both support PowerPC (MPC5XX). I do believe there is a guide on this forum regarding memory scheme, you can also validate if it matches with the memory_segment in the .A2L file
To get a better understanding of the variables, there is a MED9.1 Funktionsrahmen out there. You can also refer to this link for the MPC5XX instruction set :
https://www.nxp.com/docs/en/reference-manual/MPC82XINSET.pdfIf none of it speaks to you, all the resources are out there to learn it, or you can pay someone to do it
