Took my car down to my local engine tuner in Plymouth called Allen Jeffery, as the car felt a little sluggish.

It was put on the rollers and only managed 238bhp, its running the Graham Goode 330BHP with greens.

The tuner said that the car was only holding 1 bar of boost and dropping off and that the fueling was to rich.
There advice was the car needs a full rebuild and new loom. This cost was just under 4k

Could anyone advice me of a couple of things i have noticed.

1. Towards the front of the engine Bay there is a wire with bronze stuff on it and a electric wire hanging down

I have noticed that the lead that plugs on to the turbo acauator is not connected, someone mentioned that this is the problem as the way it is set up would show why i am only getting 1bar of boost and not the 1.5 bar.

What would people do to sort this problem out.
Seem to being ripped of by people for not knowing a grea deal about engines, just want some honest advice on this, i will get some pics and see if anyone could help