DTC Description
WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
By checking the fuel trim value under detecting condition, if its average exceeds the limitation over a certain period of time, PCM sets P050B00. MIL (Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2 driving cycle.