Hey guys I was installing my new exhaust today on my 07 softail custom when I accidentally unplugged the wires that are related to the O2 sensor. I figured out that they plug back in under the oil tank BUT I am concerned . . . there are two plugin spots, two wires. Does it matter which wire goes to which or do I just plug them in and hope for the best???? any help is appreciated.

 

Attached is the circuit wiring