Wen I crank the car I have to hold the gas pedal all way to the floor it will go to high rpms then die slowley what would that be?
It sounds like you have a fuel delivery problem or a massive vacuum leak.
It's flooding. When you hold the accelerator to the floor while starting the computer goes into clear flood mode. My first suspect would be the fuel pressure regulator. HTH. -Jim
Search Ford Mustang Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Ford Mustang Experts