Hi,
I have had the starting problem fixed on my car, it was the fuel pump not working because the fusebox was knackered. Now the car isn't running right

. It is ticking over lower than it used to, not running as much boost and there sounds like a hissing noise from near where the dump valve is but it isnt the dump valve and all the hoses seem on ok? Does anyone know what this could be? All I have had done is had the fuel pump wired to the ignition and now this problem has come up?
Thanks a lot
Dan