ok, thats better, now we know what we are working with to some extent.
Before you go and start pulling wires, have you checked the code ? I forget the number, but you should have heated O2 sensors, as such the heaters on the sensors go bad, and sometimes short to ground, which would/could blow a fuse. ohm out the O2 sensor, figure out which of the wires are for the heater, and see if they are shorted to the body of the O2 sensor. Poof, there is your short. maybe, maybe not.
If you were anywhere close to me, I'd offer to help.