Trying to put the stock tune back on my 08 QX56 with my Bully Dog. Everything goes fine and then it says downloading with a % and just sits there. Has anyone else had this problem. Please help.

naah.. do you have the car running? it just needs to be ON NOT running.

if you unplug. re plug and go to dtc settings, does it say what tune is in the engine?

naah.. do you have the car running? it just needs to be ON NOT running.

if you unplug. re plug and go to dtc settings, does it say what tune is in the engine?

All fixed. I unpluged it and started over. The power pup just froze up. Man it's slow. I have used and tuned with SCT, Sniper, LS1 edit, and Daiblo Sport. The Power Pup is nice, but dam it's really slow.