Hello all, first post as I am new around here. I have a 2012 Cruze 1.4T with 145K miles on it. I was experiencing a rough idle along with a couple engines codes that popped up. After reading some other posts on here, I determined that my check valve in the intake manifold went bad and caused my PVC regulator diaphragm in the valve cover to go bad. I replaced the intake as well as the valve cover to fix these issues. When I had it apart, I installed new iridium plugs (gaped to .028) cleaned the injectors, cleaned throttle body, replaced air filter, and cleaned the mass air flow sensor. I had my battery discounted while I performed the repairs and before starting the car afterwards, I cleared all the codes. The car seems to run good now except that my engine light has returned after about 15 minutes with 4 codes.
P0097 - intake air temperature sensor 2 circuit low
P11C2 - intake air humidity sensor circuit low voltage
P2199 - intake air temperature sensor 1 / 2 correlation
P0106 - manifold absolute pressure / barometric pressure sensor range / performance
I also read that the PVC hose/valve is known to go bad. Could a bad PVC hose be the cause of the 4 codes above? I would like to avoid throwing more money in parts at the car, as I am just a college student. If there are any suggestions I could try it would be greatly appreciated. Thank you!