UPDATE

On Friday I put a new bank 2 upstream O2 sensor in. I would report the specific codes but I had disconnected the battery as something is slowly draining it over the course of a few days.

Anyways, I ran the rover all weekend without any problems. I have bled the cooling system a few times since and have eliminated the "waterfall" sound behind the dash. The truck is running really well now and I have no hard or soft codes to report. As for leaking/burning coolant, I can't say for sure but it seems like it is not. I must need to work on my smell as the exhaust smell may have been raw fuel from running rich. I will report back in a few days to confirm no coolant leaks.

Thanks for the help guys! I will order the other three O2 sensors and get them replaced to further improve performance.

 

Nice. Just make sure there is 0 oil in the o2 plugs, pull the white plastic pieces out and look good.