I finally figured out the problem. It ended up being the FRP sensor. I guess that if you don't change your fuel filter until 95k miles, things go bad. When I took off the fuel filter, all kinds of black gritty soot came out the "in" side. The "out" side of the filter, the fuel looked cloudy. When I got my "new" sensor (eBay - $20, but looked used), I took off the old one and found the same black gritty stuff under the sensor seal. So I am guessing the grit clogged up the sensor and finished it off. I put the "new" one on and wha-lah!
I had to rig a inline pressure splice down by the fuel filter to see if the pump was bad since there is no port on the rails. Basically, went to AutoZone and they lent me a pressure tester. When I had the fuel filter off, I cut the stems off of the old fuel filter and built a T rig. I cut two sections of fuel line and pushed them onto the brass T fitting that came with the test kit. I then inserted the cut off stems into the hoses and reattached just like you would when replacing the filter. Worked like a charm. Just make sure that you cut the stems off as long as possible or you risk leaving the forward stem too short to extract from the fitting.
I got 55 psi at the splice, so I knew that the sensor was the problem.
Moral of the story...change out your fuel filter around 50k miles or the sensor is going to fail. I got lucky on eBay where the sensor was going for $20. It usually goes for $120. Type in the Bosch part number (0261230093) and/or the Ford one (3F2E-9G756-AD) and you'll find it. I think this sensor goes on the Focus as well as the Mustang. My total bill was:
FRP sensor - $20
Fuel Filter - $12
Fuel line disconnect tools - $8 (I hate these...the outside diameter is too small and it was h3ll trying to get it off. I used tape to build it up and it eventually worked.)
Rental OBDII reader - AutoZone tool lease program (free)
Rental Pressure Tester - AutoZone tool lease program (free)
I did buy a Equus 3160 OBDII for future use since it has emissions, ABS and live data. MSRP is about $450, but I got it off of Amazon for $180. It looks like a real professional tool. Thought it was a good deal...we'll see. I didn't use it for this project, so not included in the costs.
Total - $40
Thanks.