2.5 v6 tdi 180 bhp wont rev passed 3000 rpm and lost power

[pulsar20mad]

Hi All

 

As title says car has just started doing this loses power and wont rev passed 3000 rpm .. any ideas? 

car has a egr blank plate on it  was like it when i bought it . and pipes have been blocked.

 

any help much appriciated 

 

thanks 

 

sam