Im having yet more problems with my car
It is a fiesta xr2 with complete erst running gear

Problem one - car seems to be struggling when it comes on boost and even off boost when it is running from cold you can pout your foot down and the car seems to really hold back before revs pick up. When warmed up and boosting,it doesnt seem to boost cleanly, it sort of feels like it boosting a bit fluttery like if you know what i mean?!

Problem Two, All of a sudden my car seems to be blowing the fuel hose off in the engine bay which is coming from the fuel tank. Hasnt been a problem for over a year and now all of a sudden it is going tits up. Could the fuel pressure regulator have gone tits up and not be sending it back to the tank causing massive pressure in the fuel lines and therefore the hose to blow off?

P.s. I have recntly fitted a secind hand chipped ecu to my car and this is when i started blowing the fuel line off, although that could be coincidence. It is allegedly a bbr stage three unlmiited boost chip (does such a chip exist) ive had it apart and it is deffo chipped.

Any suggestions really appreciated!

Neilski