Here we go then, I bought a bora 150 tdi ARL which wouldn't pull the skin off a rice pudding, I took the cam cover off and found one of those nice cam shafts made by Cadbury's.

Ive done the following things to rectify the problem.

New cam and followers
New cam shells
New cambelt & tensioners & water pump
New MAP sensor
New dual mass flywheel and clutch
New N75 valve
Changed tandem pump
Checked for boost leaks
Checked vacuum pipes to n75/n239/n18 valves are all in the right place
Cleared all fault codes accept steering angle sensor fault
Checked cat to see if it's clogged
checked turbo actuator



I'm now runnig out of ideas, the problem is that the car starts and runs but has very little power like it's holding back all the time and the fuel ecconomy is down around the 20-24mpg mark

I have done a live data run with vag on blocks 03-08-11 which I can pm if needed.
Can anybody offer any assistance please