I got my car scanned and the code is reading P0160 heater circuit, bank 2 sensor. That is the passenger side post converter O2 sensor. I have gutted cats but the guy I bought the car from had the computer programmed to not read the cats. I have had the car for 1 year and no SES light. But for whatever reason the SES light is on now. So I bought 2 O2 simulator post cat sensors and installed them. The light is back on and the same P0160 code. What the heck is going on? I need help!