i returned the truck to stock just fine turned the truck off and cominsed to upload new downloads and while i was doing so i go out to my truck to see if shes back to stock. i put the key in and wait for glow plugs to warm up, arrow goes away and i turn the key over and nothing at all. im completely clueless. and so i go get the tuner accidently take it off while its loading and now its only shows a blue screen????????????? help me sct is closed till tuesday and i need to at least start my truck and run it on stock.