I have a 2005 Mustang GT, 4.6l FI. it's a Predator tuner, for the 05-06 GT's Need help, Guys. I've killed my car. This is what happened: I put the stock 91 Octane tune in, followed instructions, nothing. I turn the key and it sits there and chugs. Smells like raw gas. No idea if it's flooding, or ...