[MarcinOslo]

Write more info ,part number of old and new ECU ,DTC's etc.

[IM6]

Vw/udi part number 8K2 907 115 D old ECU
new (use one) 8K2 907 115 D

the same number of parts
the same year and month
VIN rewritten Coding also
The car is unblocking the immo computer ECU . engine starts and car drives
Virgin file needs to ECU otherwise I can not add keys
Immo is in SAFE ,check engine is on and ECP is on
adress 01 Engine
2783_Internal Control Module Memory
P160A 00(167) Check Sum Error
5523 Engine Start Blocked by Immobilizer
P1570 00(047)
adress 05 Acc/Start Auth
02241 Engine Control Module Immobilizer Data not Adapted

[MarcinOslo]

If you have exactly same new ECU as the old one ,then is no problem to clone it.

But you must read ori (not modified) files from both ECU's (flash + eeprom from old ECU and flash + eeprom from new).

[IM6]

I can not
change ori in the new ECU
if I put the old ECU(ori) car will not start
So coming back to a new ECU (ori) and the car start but no immo
i think use the virgin (file) not yet programmed and (the best idea)
i can do the rest of ODIS online


I can also execute a clone
because the old ECU had an internal error on a different fault
if i clone i clone also internal error (yes) ?

[racin-snake]

Nope only if the fault is in the flash or eeprom component failure can cause internal error codes clone it then clear codes with another tool

[IM6]

This is not possible


other tool what you mean ?