Logant95

So if I change the bad o2 sensor and clean the codes should the engine light stay off? No matter how many times I clear I always get these codes.

I have a 2011 ford fiesta SE sedan and I just bought and obd2 scanner to read the check engine light and I got a few different ones. It comes back with o2 and the cat. Im not sure if all 3 are bad or if I just replaced the o2 sensors it would fix everything? Any thoughts? All help is appreciated. This car has given me so many problems...