Run out of diesel

[mondeonam]

My son has a 2003 Focus diesel and ran out of diesel just as he pulled onto the petrol station forecourt. Having filled up, the engine will now not start, despite having been primed manually and as far as we can tell all air having been purged from the system.

It has been suggested that it could be the fuel pump that will now needs to be replaced or alternatively the engine management computer mught need re-setting having "tripped out" when it sensed there was no fuel.

Any thoughts on which is the most likely.

Thanks

DW