Just been out and checked my car, on my own so no one to flick keys etc. Also it's a +4 but even so this circuit should be the same. OK there is no feed to the inertia switch with the ignition turned on either in mine, it is live on the purple wire when the engine is running but what I can't do is see if it's live during cranking (arms not that long). That suggests it's ECU controlled as a switched ECU output so yours may be perfectly OK. Please check if you have feed to the fuel pump direct at the pump block connector behind the spar wheel, I would suspect the answer is no. Step by step buddy, we will find it ;-)
The fuel pump doesn't run.
One of the solenoid valves opens, but the pump doesn't run.
If the instruments worked as normal I'd suspect the pump or relay. It is the lack of activity on any of the gauges or warning lights that is very odd.
Just realised none of the warning lights come on with the ignition.
Hmm.