I installed a new catalytic converter in my 2007 Honda Odyssey bank one. There was an extra O2 sensor stuffed in between the shield and the converter. There is one at the top and at the bottom in addition there are also two for the catalytic converter bank two on the front of the engine. Any thoughts on where that sensor would go?

solved. The extra O2 sensor was not connected.

Here are the three connectors and O2 sensors on the back of the engine bank one.