I have a 2002 WRX wagon that I absolutely love. A few weeks ago my check engine light came on and I took it to my Subaru dealer and they said it was a dirty tumble generator. They said they could clean it for like $200 or replace it for $800, so I had them clean it. Yesterday (4/5) my check engine light came back on and I took it to Autozone to have them check it and it says the same thing "Tumble Generator Valve #2 malfunction (stuck open, dirty, failed actuator, or failed position sensor)."
Does anyone have any idea about this or what to do with it? The car still runs great and no differently than before. Just want to see if this is something I shouldn't worry about, or can fix on my own, or just have a better idea of what's going on so the dealership doesn't try to walk all over me. Any feedback would be greatly appreciated as always, this forum has always been terrific about helping one another out and you don't see that much these days!! Thanks a lot.