it took them all day to change the warm up regulator?? its 2 fixing bolts on the side of the head!!

that's my point

Any way they have fixed it

There was a series of things wrong with it and one of them was a part they supplied which was all catered for under a warranty.
Starting from the back it was the fuel pump in the tank, new injectors and more importantly/expensively it was the warm up valve. These faults resulted in a 20+ fuel pressure, when it should have been 80+.
The warmup valve had to be got from the stealers and was £200+

So though they took their time, importantly it appears to be fixed
