The car is a 2001 fordmustang cobra svt with a 4.6L and a manual transmission. First off, I am a mechanic. Also I have an autel scan tool. So my problem is when cold this car starts and immediately dies. If I keep my foot on the gas it runs fine. Once its warm it idles fine. With my autel dont give me anything to go on, tps, air flow, map coolant sensor, everything looks good. About the only thing the autel gives me is long term fuel trim is at -5 meaning its running rich. Hooked up a fuel pressure gauge as see thefuel pressure fluctuates between 28 and 32 psi. If I unplug the fuel pressure regulator the fuel pressure should increase but the pressure drops to 20 psi. Other random observations may or may not be relevant it appears that the head gasket on the left side as well as 1 of the freeze plugs appears to be seeping and the oil pressure sender is leaking, but oil level is fine. Car has 90k miles. Any thoughts on where to go from here would be appreciated. Thanks.