WQ Fiesta starting issues

[Pube]

My girlfriends WP fiesta has an issue starting. It cranks normal, fires (sometimes) then dies. When it does fire it will run for a second but the electronic throttle pedal doesnt seem to be communicating with the throttle body, as in you pump the throttle within that second of run time but the engine does not rev.

It seems to be getting worse, yesterday it took 4 times to start other times it runs straight away. Anyone else had this?