What is this wire connection housing. Near DS o2 below the block drain?

[2001LC]

I was looking through picture for one of the T-belt cover weep hole to post up for another thread on coolant leak, when I noticed this.

This connection is hanging loose, in a picture shot from underneath. Near the DS upstream o2 (bank 1 sensor 1), hanging loose just below the block drain?

I know we have various unused connection throughout the 100's. But can't imagine what this one would be for on and 01 LX.

 

[feddomw]

I can't help you with this, so I hope someone will chime in who is knowledgable. I gave up on these questions or mt. T's wisdom, I have 4 (!) connectors hanging loose at various places on my 100.

So:

 

[Trunk Monkey]

Did you chase the harness back the other direction?

 

[2001LC]

Not yet but I will. Thanks TM.

 

[hankinid]

Wire colors going to the connectors would be helpful.

Steve

 

[2001LC]

Ok so I took a look last night while under her replacing bank 2 sensor 1. The two wires are blue and white appear next too o2 wire (4 wires) block. The two set just go into a block a few inch away. From there a single wire protective cover runs up to...