My car is fixed! So I figured I should update this thread incase anyone has a similar issue in the future. I'm thinking the dealer originally saw the 2C90 code and assumed the DV needed replacing but the replacement actually didn't end up changing anything. The real issue was related to the wastegate. Dealer replaced the wastegate arm and actuator and my car is getting FULL boost now! Hitting 12psi on my p3 gauge in3rd/4th and most importantly, no limp mode! Once again, I seriously appreciate the support here from you guys on the forum.
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