I didn't say anything about the ECu? If the fuel systems up to pressure it isn't gonna pressurise it any more is it? Yes the fuel pump still "clicks" but obviously it is up to pressure so won't do a prolonged prime which is what people are listening out for. I'm not gonna play word games u know what I mean by saying it clicks it is trying to prime but only a split second, people listen out for a prolonged buzzing which they won't get if it's up to starting pressure. That's the confusion