Re: hello to all
You can easily check the fuel pressure at the rail, even without a gauge. Just press the schräder valve on the fuel rail and see if fuel under pressure comes out. Catch the fuel coming out on a rag, to prevent a fire.
If the security system is the problem, you normally get the key symbol on the instrument panel.
Does the engine crank normally? If it doesn´t start, are the volt and fuel level indicators indicating normally?
If it starts when cold, but not when hot, the problem most probably is not fuse related. I would put my bet on the crank position sensor. The 4.0 also can have a problem with a wire bundle, which passes around the cylinder head on the aft side. This bundle can shave through due to vibration and/or engine movement and short a wire out.