So I took a look at my forward sensors. I found the other sensor, it is in the exhaust line before the cat, but is aligned in the down ward portion lower than the other sensor in the exhaust manifold. It was actually fairly easy to take out and inspect (just a little PB Blaster and an all/16ths). This piece was the correct part from what the last dealer tech gave me from the code I was getting, "G235".
Upon removal and inspection of the sensor i shook out some grit/debris. I can only assume from when the dealer tore apart the engine in July to inspect for damage from a broken timing belt.
After reinstalling the sensor and resetting the MIL by pulling the battery cable and reinstalling it, the MIL cleared and after several stops and restarts of the engine. The light has still not come back in.
Hopefully the removal and reinstall with the cleaning out of that debris was enough to get the sensor to work correctly.
Any thoughts or feedback is appreciated.