Is there a P0166 and P0167 code?

Question

It's a 1997 Hyudai Sonata. The engine light keeps coming on. I changed the oxygen censors, and the light went off, but after about thirty miles, it came back on. The codes are P0166 and P0167. I can't find a description for either of those. Can you help?

Answer 1

P0166  02 sensor circuit no activity detected Bank 2 sensor 3

P0167  02 sensor heater circuit malfunction Bank 2 sensor 3

This code is invalid for this vehicle, use another scan tool , this vehicle has no sensor 3