lindahudek
May 19th, 2011, 05:20 AM
I have a 2008 GMC 3500 (which has been tuned before by a friend). I just purchased an EFI Live so that I can tune the truck myself and am having problems reflashing the ECM. I have all the latest software/updates and the connection between the laptop, cables, truck, and Flashscan V2 are fine. I can read/retrieve the ECM memory/calibration just fine and view it in the tuning suite, as well as make/save changes to it. However, if i try to flash the ECM with any tune (even the same tune that was on the ECM with no modifications) the process aborts directly after it deletes the ECM's history. The truck then shuts itself off. The ECM hasnt been damaged in any way during this process. But I cannot figure out why I can't load a new calibration/flash the ECM. I have tried disconnecting all phone/ipod/CB chargers and even pulled the info/radio fuses and still no luck. The licensing is also OK. Any ideas??? I'm desperate! I am having to drive the truck with EFI live so I can constantly delete the DPF error codes so the truck doesnt limp out on me. HELP WOULD BE GREATLY APPRECIATED!!!! :help2: