I've spoken to richy about this and we're thinkin its probably regulator but i'll get some more opinions!
turn key to second click, pump primes and as i'm running a FSE with gauge i can see pressure go upto around 3.0bar.less than a second after prime finishes, pressure drops to zero, i mean instantly, by the time i've turned the key to start the car its at 0. then takes couple of cranks on the starter to rebuild the pressure to allow the car to start.
once started maintians correct pressure so theres no delivery problem
no obvious leaks in system, not to the extent of such dramatic and fast pressure loss, no petrol smell etc
pump works fine, no hesetancy, and no problems driving either, pulls strong etc
any thoughts?
cheers
Coops