Fooking thing, all i ask is 300 miles trouble free a week

Was spot on going to work, set off home and feels like no boost or in some sort of limp mode.

Really gutless, turbo is still in ok condition by sound of it and cant hear a pipe popped off but will check at weekend but it still drives perfect and idles spot on too, wouldnt be like that if pipe off would it?

Fuel filter is of unknown age/condition so will change
air filter same as above

any other ideas?? how is fuelling on boost controlled? vac pipe and compensating valve? if so maybe thats stuck or pipe damaged where is it on pump if it has one.

its basically just like a 1.6 -1.8 diesel at mo