This is a funny one.

Pulled up to a cashpoint turned the car off and locked it up. Came back 5 minutes later went to start the car and it wouldn't fire at all. Spark was there and there was fuel going to the Metering head but nothing was going to the injectors. Checked all sensors etc and found everything to be connected as it should be. Got my mate to tow me home and he suggested trying to bump it off while he towed me. This did the trick straight away no stuttering or anything. Car has run spot on since which is weird.

Could I have just had an air lock in the system?

Cheers
Dave