Hi I just purchased my first Subaru Impreza, always wanted one of these since a kid and finally went for it and traded my Bmw in for this beast, probably not some peoples cup of tea and is certainly a change from my usual choice of vehicle.
it was originally a bugeye and as you can see it's had a lot of work done to it including loads of modifications and I'm absolutely loving it, first car I have owned with a turbo as well so getting a bit pedal happy and enjoying the flutter, now the turbo also whistles when I accelerate which I read can be a leak of some sort or can just be normal but what's leading me to think it's a leak is when I come to a stop it's hunting for idle and dips a few times then will sit around 1000rpm but while its dipping the oil pressure gauge is dropping well below 2, beeping and flashing red which I know is obviously a problem if your driving along normally but is this I problem I should worry about at idle which is causing the oil pressure to dip rather than and actual major problem causing it to drop? Again I'm totally new to subarus and turbos so I'd like to get know a bit more, also it's the 2001 2.0 litre engine....just thought as well could the idle hunting be caused by the idle control valve being dirty or something? Really hoping the rough idle is an easy fix, cheers