Had the car back for about a week, waited to test the car befor updating again.
All my issues have finaly been resolved, it did end up costing me a bit of money and the car going to local toyota dealer.
In my case the final issue came down to the valvamatic controller assembly (PNC222A0 in image provided by Konrad)
I did find this part for sale on ebay for a new part it was going to cost £995 at the time, today the same part was available new on ebay for £844.95.
I also found scrap yards for the part but they could not assure the millage and they ranged from £400 - £755.
I paid £1300 in total for the job, thats includes collecting, diagnostics, replacing the part and return of car. its more than the part and self installing but buy this time I just needed the car to be fixed and I was not 100% sure which part of the car was the issue.
anyhow now its all fixed, I am a happy driver of my Toyota Avensis and I even got the old part back from Toyota so I will be having a disasemble and look at it see what went wrong and if it fixable.
Thank you to all who post here it realy does help people and a big thank you to Konrad for the time and effort you have provided.