Originally Posted by
domino
look down the end of the pipe work and in one of the pipes at the solenoid end there is a tiny pill (ball bearing looking) with the center drilled out,,,,sounds like its missing or you need another pill with a diffrent size hole,,,,if your running a boost controler then this does the job of the pill anyway,,,the smaller the hole in the pill the more boost you will run,,,so if its missing you will be running low boost
surley if its at the solenoid end you will need a bigger hole for more boost? as the more you bleed off the more boost you will make? Ill have a closer look later, its just strangethat it made 19psi before no problem at all, and now is making 14-15psi, the general concensus on the subaru forum is that it is now outwith the mapped duty cycle of the boost control solenoid and it cant run enough duty cycle to make target boost. A manual controller will sort this out lol.