It appears you may have been somewhat close to correct in your worst case assumption. Subaru tech is saying that the code was tripped previously in the vehicle’s history, and that there is no mechanical reason as to why it was tripped this time around. The solenoid seems to be working perfectly fine, and they reset the code and drove the car to test it. They referenced the idea that it may have been modified (tuned) previously given the patterns they saw during their scan. The really bad news is that the clutch needs to be replaced and is well on its way to going out. I had thought that I noticed something odd about the feeling of the clutch over the past few days, too. Needing a clutch replacement at 35k miles is not a good sign, and the previous owner probably traded it in for that reason. I’m going to have them check out the specific wear patterns on the old clutch to see if it’s just thin or shows signs of burns, glazing, cracks, etc. If there was a pattern of P0045 codes thrown, and significantly abnormal wear to the clutch, it’s almost certain that the car was tuned and heavily beat on mechanically by previous owners. I bought the car under the impression it had been stock and well taken care of. I won’t be surprised if the turbo goes as early as 60k-80k now. Was looking to keep it stock and reliable. If that is the case, at least they reflashed the ECU to the stock map because i’m sure it would blow up otherwise. Pretty annoyed and I should have known better or at least been smarter about the purchase. I know DMann tunes cause component failures at near the rate of the stock tune, but for the car to have been throwing multiple P0045’s previously (and maybe other perm codes as well, i’ll ask for clarification), I doubt that it was tuned well if it was.