Bank 2 Sensor 2 O2 sensor wiring

[Turbohugh]

My wiring was crushed under the car, and the 02 wires mangled. No connectors on the car harness or the o2 sensor.

My question :

Is the wiring harness connection (under the car) removable somewhere else (upstream). Im hoping it is , so I can disconnect that section and replace the entire section from where it connects under the car to this upstream connection (if it exists).

Otherwise, I am going to have to Rewire and I have a yellow, white, red and black on the harness, but red white black and brown on the o2. I wired the common colors and the yellow to the brown (temporarily) however I threw another CEL code (haven't gotten the codes yet).

I need to clear the CEL so I can get through emissions (in washington they will not test ODBII cars unless the CEL light is out and the computer says no pending codes..)

Thanks in advance.

TH