Worked out that power not being delivered to pump once car goes from reds to cranking. In the interim, we ran a wire from the rear park lights to the pump to jump it and give it power. Atleast thus allowed me to drive it down the road to my mate who is an auto electrician and he will sought out today at some point.
related to fuel running out or just pure coincidence....who knows???
Thanks again everyone for your help, it is much appreciated