Probably needs a software update.... Quick test is whilst in P (park) rev the engine to Max if it has had software update it will only rev to 4000rpm if it revs to red line it defo needs to be updated. The software update changes transmission control module settings. I had similar problems mine is ...

That didn't sort it improved boost when cold but still looses power when up to temperature, don't know what the solution is now any help appreciated

I'm starting to think it might be my TCV, not sure why its only affected when hot but I have ordered a Manual Boost Control Valve to have a play with only £12 so a cheap fix if it works, I may even treat it to a proper TCV if it works. I will update in a few days once it arrives and I've fitted it

Cleaned vvt solenoid, no real difference though when hot.... had no brake cleaner so used wd40, put 12v across it can here it engaging but can't actually see anything moving, so it may be ceased or moving parts may not be visible??

How did the cat clean go?

Can you run vida through windows 10 with a virtual machine or is it just windows 7?

Also I found out you can bell out or ohms test vvt solenoid (not sure if this would cause the problem but an easy and free check to, heard they can get clogged up and can be cleaned with brake cleaner or similar

Is there a way to test vvt solenoid, I'm not getting any codes on torque pro & haven't got vida

Would have thought if it was the cat there would be a code thrown up by a difference between the two oxygen sensors?

I have exact same problem, mines OK when cold but as soon as it gets to temp boost goes and it sounds a bit like a "Waarrpp" sound (think thats how you spell it) almost like the control valve is letting boost out from wrong place, can't see any leaks in intake/hoses and my stfc & ltfc indicates no ...