I highly recommend going over to PCMHacking.net. A lot of smart guys over there that might be able to help. They mostly play with gasoline ECM's, but the concepts and methodologies used are basically the same as you are wanting to do on this diesel ECM.
There are some very good Bosch guru's out there, if you can find one to tackle it. As you can see in the video, just learning to use the tools is it's own months long course. With proper a2l or map file, it speeds up the searching process a good bit.