Xedos 6 Feels weak and not over 3000 rpm :-/

Hi!

Anyone that could give me at idea of the problem?

Feels weak och mostly but not always when I´m driving around 70km/h
and pushing the gaspedal all the way down its not respond normal and it goes only up to around 2500-3000rpm.

The LMM is good.

I have no vaccum problem now and no faulty codes!!