2008 Audi TT Quatro 3.2L V6

I had a check engine light that came on and the error codes indicate that the Bank 2 Sensor 2 has an issue. I looked under the car and noticed that the sensor wires were dragging on the ground and had damaged the wires. I installed a new O2 sensor, reset the codes and with in 20 miles the check engine light came back on (with the same error codes). Is there something else that I need to look at?

Scott