I bought a Triple dog from a guy locally and he said it was all on stock. I put it in my truck and says it can not communicate with the truck. So, I try to update it online. Says turn vehicle back to stock. Well I know even the tire size was turned back to stock. It was used on a Cummins only. Last on a 2004 cummins. Now here is the weird thing, When i plug it into my comp or my truck, it says " duramax 6.6L" at start up. Then goes into the on the fly programming. What is going on? It was never on a duramax. Only on cummins trucks. I do not want to pay Bully Dog 100 to get it fixed when I know it isn't saved on another truck and especially a chevy.