I have an '03 WRX and it just gave me a couple of codes. I looked them up and one is for the TGV servo 1 and the other is for the TGV valve open. Does anyone know which is the servo 1? Is it the left or right bank? My guess is it is the right bank because of all the troubles the #3 cylinder has with the turbo being right there. That's just a guess though. Any ideas? Also, will replacing the servo fix the open valve or do I need to fix or replace the TGV?
You can consider deleting the TGVs, and then tune for the absence and pick up a small amount of power. The turbo doesn't really cause problems being "right there," but I am fairly certain you are correct with which side. . . Passenger side.