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Make sure you are seeing the flash in the red LED on the dash when cranking indicating DAS release.
I believe that you should have fuel pressure even if DAS isn't released, it's the actual "injection" which is not functional if DAS isn't released, pressure should be there. Backing up this observation is the fact that no pressure is present at the rail. If injection isn't authorized, the pressure would have no place to go and you should have had at least an initial pressure remaining, possibly the truck would have ran for 15 or 20 seconds on the residual pressure. Did it? Also when cranking watch the odometer field for a "start error" message.
I think you're on the right track with the pump. Has it ever been replaced? Also has the fuel filter been updated to the long filter yet? The fuel filter itself is the fuel pressure regulator BTW, and can also cause a no-start condition.
Make sure you watch for that split-second "flash" of the red LED though, because it could still be a DAS problem (antenna ring around ignition lock and/or amp) even though the keys could be fine.
If your profile is correct ang you have 110K on this truck, I would doubt any help would exist, unless you are like "solid gold" to the dealer because if it's the pump, yes it's common, but they'll think "he got 110K out of the pump (assuming it's original), he has nothing to complain about". If the pump was replaced in the last year it's under spare part warranty.
Gilly
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