my wrx seems to be running very rich. it has a very strong fume smell when its running and seems to really destroy the fuel. possible seems like there is unburnt fuel getting pushed through the engine.
it also sometimes has a little sputter/miss of some sort right before the turbo comes on, particularly if i sit at the rev/speed for a second or two.
i had the fuel pressure checked a week or two ago after changing the fuel pump and they told me the pressure was fine, however i do feel maybe the reg is gone? any suggestions in to what this could be?