I say it still could be anything... E-Gas system/MAF... potential key/ignition issue...
I think we're all assuming he changed the bulb and put everything back the way it was....
If something on the fly-by-wire wiring was jerked loose behind the dash that could also do
it... but without troubleshooting hands on, I think the chances are slim to pinpoint.
Hey Gorthour, put some floats on the bottom and drive it accross the pond and drop by with the car

I'm sure we could get it running.