It wont connect for some reason. I shut the truck off and it bypassed turbo cool down and wont reconnect. I can connect to my OBD link scan tool but not the Quadzilla. Checked my hot wire, grounds are good, fuse is good.

2 Things iQuad head and the CANBus need to be hooked up. Then the V2 tune option should be be enabled in vehicle type. If that isn't working give @Quadzilla Power a call.