hi there

i got a Friend who Drives an STI V2, the car was boosting fine about 2weeks ago, but since then the car was garaged and never started, since today it starts fine, but when flooring it, it doesnt boost well... it drops to 0.7bar then 0.5 then 0.7 again?? and also no CEL at alll....could it be the boost sollenoid ?


the car has been fully serviced 1months ago, with all belts, plugs, all oils and fluids...??

any idea??