o2 sensor
Just bought a 2000 convertible. DIC shows a PO137 code bank 1 sensor 2
replaced driver side back of cat sensor same code came back. Question is did I replace the correct sensor? What else would throw that code? Curiously the wires to the rear sensors are plugged into the opposite sides. In other words the left unit is plugged into the right side plug and vice versa . Any help would be appreciated.



