PhilW said:
Stuffed coil packs?
Boost leak on the vac hoses? Check all vac hoses and the brake servo hose off the side of inlet manifold, coz i was losing loads of boost through there.
Forgot to add.
New Coilpacks and Plugs.
No vac leaks... 100% sure.
Plus Plugging the charge tube to the wastegate would produce huge amount of boost and we got feck all.
**Update**
Most people post a thread and don't let people know how they fixed it. Tom has got in touch and told me that he took his car to owen developments. They have identified the cat as being blocked.
It was rolling roaded without the Dowpipe in place and the car now produces boost.
Tom is now looking into replacing the standard cat with a Blueflame Turbo Back exhaust.