Hello, i have a suspect problem with the car and i try clone the ECU to a used one.

I read the origal and used ECU via BDM.

Than i flash the files from original ECU in the used ECU and verify - all OK!
But this ECU not work. No engine light, fuel and temp go to high and no OBD commincation!

After this I try the original ECU, the same :o (but i only read via BDM)

Now i flash the org files of the used ECU back.
Now the used ECU work. with immo fault, but it is possible with a used ECU.

Can anyone explain me??

I have here both files - org and used ECU.
Can somone make virgin or immo off from the used ECU to begin a new try ??