Alright so o bought my 2012 sonic ltz 6mt I'm 2014 since then I haven't really had any major issues within the last week I got a cel for turbo under boost but I also had another code for bank 1 to lean so I checked for a vacuum leak and found the pcv in the valve cover went bad, I just replaced the valve cover yesterday and cleared the codes, today I was driving and all of a sudden my boost pressure droped to 5 psi and had the same underboost code come back, I pulled over cleared the code and everything went back to normal, I checked the wastegate actuator and it has no play in it, I'm trying to see if there is a fix for this before taking it to the dealer.