Hi
Many of us on here have had similar issues and they have been resolved by replacing the crimp fittings with the screw type fuel clips.
Also it would pay to check the fuel hoses for damage to the internal layers as I have had this recently.
I was getting a small leak at certain times even with two fuel clips, as pressure forced a very small amount through the hose layers
Be wary as any fuel getting onto the windscreens will cause them to self destruct
Be sure to use specific fuel hose screw clips and not just the "ordinary" ones
Cheers
