got a slight problem with the fuel pump which i think is ecu related, im hoping someone on here knows the answer or has had the same problem before?

when turning the key once theres no prime, turn again no prime, then on cranking the fuel pump runs, then when started it runs continuously

i put a light on the fuel pump feed wire from the ecu and it doesnt light up on 1st or second turn of the key so theres no feed from the ecu to tell the fuel pump to prime, is this a nackered ecu or a sensor possibly causing a problem?

cheers nick