Whatever scantool you use to read the codes should have a fuel trim display. LTFT/STFT trims...unless all you have is a code reader.
Those codes indicate sensors are seeing more oxygen than they think they should, so it'll instruct the injectors to deliver more fuel...until it over delivers, and then it'll be seeing not enough oxygen, so it'll shorten the injector delivery times, adjust IAC valve based on TPS numbers...on and on until the sensors balance themselves out. if they're stuck at one end of the range they're supposed to be within, it'll never happen. Your task is to determine why they're "stuck" and reporting to the ECU what they are.
HOWEVER - it might not be those sensors reporting incorrectly.
What if you have an exhaust leak, so that outside air is getting in to be seen by the sensors, with more oxygen from fresh air than they're supposed to be seeing? that could cause more o2 around those sensors than the computer thinks it should see as well, causing all of the same things I described above...
I still bet that it's wiring. a broken/burned wire to one of the 3 sensors, a funky ground... Got a wiring diagram?
at least you know the computer works properly
I believe Ford tells you to replace the o2 sensors every 60k miles. I don't think they're clean-able, like the MAF.