[syncroid]

I just went through this with the Rover. It would throw P1170 and P1173 codes for 02 sensor faults. (even though they were brand new) I chased my tail for weeks researching and replacing all of the know causes. The last thing left is to replace the catalytic convertors. I ended up clearing the codes and doing the readiness monitors very near the smog shop. The second they popped, I was less than a quarter mile from the smog test center. I got it smogged and registered. I now have two years to save up for the cat replacement and no stress.