X5D new JR auto tune- car will not start?!?!

[Jeffkukuruda]

Gang,
I'm in serious need of some help or ideas. I sent my DME to Jarek at JR auto to be tuned on my 09 X5 diesel. The work was done and returned to me as advertised, however the car will crank but won't start. I have many dash warnings to include...
-AWD and DSC malfunction
-fuel pump malfunction
-tranny malfunction
-malfunction in drive

I also have many codes that will not clear...

-DSC ecu- 6EC4 steering angle sensor, multiple PT-CAN faults D355 D354 D356, message 6F56
-transmission ecu- unknown dtc fault CF61
-instrument cluster- CAN signal fault engine A3AD, CAN signal fault engine idle A3AE
-Junction box passenger- K-CAN fail C919, PT-CAN communication C90B
-Fuel pump- unknown failure CED4

Finally- the engine ecu shows - not present / no answer

Jarek has been trying to help me best he can and has suggested repeatedly it is a bad connection or that I plugged the ECU back in wrong. I swallowed my pride at the suggestion and disconnected all the lever plugs and reseated them. I have now removed and inspected and reinstalled the ecu about 6 times, I'm now sure it is connected correctly. I also have taken the time to pull every single fuse in the trunk, front passenger junction box, and the 5 in the ecu compartment, not a single bad fuse. Could this be a bad relay? Fuel pump relay? Does anyone know what the two relays in the ecu compartment are for? Can I test these? Or how do I tell they are bad.

I need this car to work, I don't know what to do at this point, but it certainly seems the car isnt communicating appropriately.

Thank you so much in advance,
Jeff