IT WAS THE MAF SENSOR!
Finally i got the car working as it should, funny thing is that the old one was not showing any error codes bit it was not working as it should.
In the process i had some parts changed that ware not due for changing so i spend some extra money, but now i know that the car is in a perfect condition
i can post some reference metrics from VIDA if you want, those metrics got us back checking the MAF which was not showing any errors and the car was once tested with another MAF sensor (probably it was faulty too)
I just saw the full power of this car and writing this post .. my old car was Fiesta with 90bhp, jumping to s60 with 163bhp is a huge difference for me
If any of you guys need any reference metrics just let me know and thanks for your help.
Regards,
Nikola