Engine Error codes

[LSX5]

Hi Guys
Looking for some direction.
I pulled these codes looking for help.
Car ran fine on Saturday on Sunday I drove out out of my driveway and engine malfunction appeared on CEL.
I pulled out the boost pressure sensor it was very caked up I cleaned it up and reinstalled.
Not sure if I should replace the boost control sensor. I also smell exhaust odor in car.

Error codes
4B82: exhaust gas recirculation rate control, control deviation
4C83: exhaust back pressure before turbocharger, plausibility
4370: exhaust gas return rate control, control deviation
3F25: charge air tube monitoring
3FF0: air mass measurement
48DC: boost pressure sensor, plausibility

Thanks guys.