i have a cc/ sb 07lbz with transgo jr efi with ppe lift pump. i went to full flash a new dsp5 tune on my truck the other day(because i had a single tuneon it) and it went through its process and said flash complete turn key off for 15 sec. evrything acted like it was fine. then went to start and truck wont crank. after checkin battery volt and all fuses i am stumped. i get error message wheni try to reflash it. no communication. i also have a solus pro and it will not connect with the truck either. so i got on the website and did some research. my flashscan is up to date i even uninstalled efi and reinstalled it. i tuned it with the v8 program. is there any way i could have fried the ecm or am i just not doing something right? can someone point me in the right direction. thanks