Bmw vin vf24639
I have this 1 series e82 , with a damaged dme . I replaced with a donor dme , changed sk in the cas , and the car started.
I the. Coded and reset modules . But I have one big issue . The transmision goes into fail safe . And it won’t shift . And it says 
 Nocomunication  from DME inside egs .
I reset it and still no luck . Then I put the original back in the ori DME that is and cars starts and shifts fine. 
So then I said I’ll change the isn in the DME which I did car starts but same problem , 
Egs says no comunication from DME . Now it’s been 3 ecu replaced 2 say in the egs no comunication from DME 
How can I reset the egs isn so it can take it . ???
Thanks for the help . 
Msd80 is the computer .