I have a 2013 Subaru BRZ with some modifications to the engine (eddlebrock supercharger with the accompanying throttlebody and inter cooler.) recently when driving I lost all power above 3k rpm and then went down to 2k rpm. It didn’t throw any codes at first but now has a code for p050a the idle air control. From the forums I’ve read it says that the brz doesn’t have one. Can anyone confirm or have ideas on what it might be?