I had a melt down with my 2007 avalanche 6.0.They reflashed my pcm and it is running fine.I have done the update to the hand held u7194 (8r10.crom).i would like to hear from any one that has installed in the same truck.Thanks

You need to get a USB to serial adapter cable.Any copm store will have them.

Avpilot this is a known problem.diablo will reprogram your pcm.There are many posts on the sight about this.Do not try to reprogram untill you update your programer,new update this week.

Mike diablo still has my tunner .Any word on the update.My truck is back up after you guys reprogramed my pcm.