Ok think I have a problem with loss of power

Been reading that it might be the wastegate that needs cleaning
Thing is not to sure how to do this, got an idea where it is but not sure what to do when I have took it off, it’s a my03 wrx with a ppp kit typhoon induction as well

done alot of searching but not found anything Specific to 03 wrx are they all the same

 

you will have to take your turbo off to clean the waste gate not heard of this needing a clean though are you sure you havent got this confused with the boost solonoid???
KIP

 

yeah thats it boost Solenoid

 

as i said above done alot of searching on site and can't seem to find anything about solenoid cleaning for newage just wanted to know if they were all the same
found one post that tells you to take it off connect green plugs under dash and do it with brake cleaner
also do you think it could be the dump valve it's a gfb adjustable from scoobyclinic to be honest i am thinking of taking it off (bit fed up with the noise)

 

come on guys quick post back want to do it in morning