So my 03 CTS has been throwing off a code for a few weeks saying the 02 Sensor 2 bank 2 was bad. The 2nd 02 Sensor on the driver side of the vehicle. Well I replaced it with a brand new one. Cleared my engine light. Took her for a spin and by the time I got back the light was on again. I threw the OBD on it and it read P0160. Saying 02 Sensor 2 Bank 2 No Activity. So I jacked it up and made sure I had it plugged in good. Took it for a spin again and undoubtedly the light came on again. Same error. WHAT DO I DO NEXT!? I don't want my engine light on I don't care that it's just a 02 Sensor I want it fixed.