Audi A8 d4 4.2 tdi help

[Quattro1111]

Hello, in this car there are 2 edc17cp44 ecus.

is the same software on both ecus?

If I want to make egr off, I have to read every ECU separate, and then write the modify file separate too?

tool

Scanmatik 2 Original with PCMflash module 71

work by bench.

[bodzio012]

Yes.
There are 2 ecus. Both the same flash. Different only on eeprom.
If you want EGR off you have to both ecus

[Lambda1]

Correct... in both sides.