Those numbers really don’t mean anything to us.
1. Is yours and the one your buying ddfi2 or ddfi3? Compare the number of pins in the socket
2. if no- find another. If yes move to step 3
3. Get a device like a Buelltooth from rev mo or a cable and plug into an android device running ecmdroid (free download) and compare the firmware code on both ecms
4. Is it the same? If yes move to step 5. If no you may have to find a harley dealer (likely one that once sold buell) and see if they can reflash the firmware.
5. Upload a tune from rev mo (if you bought a Buelltooth from them) or maybe there is one on buellmods.com
6. Hope and pray that you were correct about the ecm or you just spent a lot of time and money for nothing.
Being that you don’t mention pulling any codes from the ecm. How do you know it’s the ecm? Maybe it has a dead battery? Is it out of gas?