I have been having a problem with my O2 sensors in my 97 Z. One was reading around 200mV and the other 900mV. I just checked the continuity to the computer (tan and purple wires) and they ping fine. I checked the pink and black wires (power and ground) and it is showing a short. I am assuming this is because the wires are melted and touching somewhere. I was just verifying that these shouldn't be showing a short at anytime. Any help appreciated.

http://mywebpages.comcast.net/orionspl/ssss.jpg