Loaded a couple modified tunes on my truck one a day after work as i make the changes to the tune, every thing has gone great untill today. The third time i tried to flash the same tune with minor changes in it, the flash stopped about 4-5 mins in gave me "script exited with code $0548:flash check sum failed, please retry flash procedure". it also gave $0101 i cant remember when that popped up trying to read it i think. it was cycling to fuel pump when this happend and now through any attempt to turn the key on the dash lights are on and the fuel pump continues to cycle. now EFI wont even recognize the ecm! i pulled batt terminals pulled fuses no luck. Had a smarty so6 on prior and was returned to "stock".Can anyone help me??!! i have to work in the morning and the truck is dead in the water!!! this is my only vehicle here! Help@!@!@ Sorry if im not making sense im in panic mode trying to figure this out!