Aghh exhaust gasses in water
 

Well where to start I've just had my impreza engine out wrx p reg and replaced head gasket and every thing just pit it back in and run it up to find the car is still pressuring up as you rev it I've really had enough now and spent so much doing it so far I just don't know what to do ?

gutted for you! iv read somewhere about turbos failing and leaking gasses into the coolant system??

im sure someonw will be along soon and have more info and be a better help though!!