Where would the boost solenoid be located on my car which is a 95/96 wrx sti wagon. And easy it to clean....

 

if its the same as my93 wrx it should be on the drivers side supension turret.
it looks like a small tube with three/two pipes going to it.
i think that to clean it you just squirt brake cleaner through the pipes, there is an electronic method of doing it but im not too sure bout that

 

CHEERS BUD.

 

Look under the dash for the two green plugs and put them together without the ignition on. Turn the ignition on (dont start though) and spray brake cleaner through the solenoid while it is clicking. Disconnect the plugs and put the pipes back on.....Voila

Stuart