Melodramatic title I know but get seriously pee'd off now.
Following these -
I took car back to VX today in limp mode, they plug tech 2 in and tell me it requires a new fuel rail £844 for the part £1,009 fitted.
They have agreed to deduct the cost of the Boost Pressure Sensor fitted on Tuesday as a good will gesture, but still maintain it was required and following a call to VX who agreed to be 50% (car out of warranty so better than a smack in the teeth). I still will have to pay £532, not to mention the £333 I've spent on this problem so far.
Best bit yet to come........
Driving away from the dealers got about 2 miles car looses all power (different to usual problem) engine management light comes on (not spanner as usual). Take it straight back tech 2 shows problem with accelerator.Never happened before and has to be a result of something they've done or amazing co-incidence.
End Result I'm in a Corsa they are going to contact VX and go through checking procedures and have advised me I'm not likely to get it back 'til after weekend.
If I listed the problems I've had since getting the car people wouldn't believe me.
Warning to those with boxes or considering purchasing them beware, I'm convinced now its a problem with the fuel rail it's a likely cause. Before people have a go I know theres people who have done many miles wilth them and had no problem, but mine won't be going back near the car.