Think I had my first ecm die on me. Out of all the ECM that give me trouble, the Cummins is certainly not on the top of the list. It is the CMC controller and is now getting $0549. I know their was problems with this in the past due to "Smarty" files being used. I do not believe this to be the case. The truck had full DPF and EGR in tact. It has been stock it's whole life from what I am told. Did not have 601 bootloader in it so original ecm with original file. I read stock file, it read really slow. Took around 12 minutes. Modified and upgraded to CSP. Licensed controller and flashed in. I walked away from the flash for around 10 minutes because that's usually how long it takes. Well the flash finished after 4.5 minutes, way too quick IMO. Left key on for 6 minutes (roughly) after flash. Said flash finished successfully and I shut off key for the timer. Truck is now dead and will not communicate. V8 2.2.290 v7.5.7.299. Got it loaded and will try wi tech tomorrow but I have a feeling I need to find a new ecm. Anyone else have any ideas? Already had cables unbooked and shorted without luck. Put ecm in another truck with no luck. The tipm seems to be not getting a key on signal from the key or ecm? It will not bring on the Fass pump anymore with the key. The injector solenoids are not clicking either. Gauges seem good. Frustrating. It's weird how the flash completed successfully in such short time. Only think I did differently this time is left the key on after the flash for a significant amount of time. Can this cause it?