Okay i posted this question on honda swap and didn't get any help, don't know if it's that stupid of a question or what, but i would like an answer!

I'm swapping a jdm b-18c (r) obd2a into an eg hatch. I thought i bought a gsr wire harness to make things all very easy, well i was sold something different and now i'm working it out. I think it's an early integra obd1 harness but i'm not sure. Anyhow I rewired the Distributer plug to the obd2 plug, the alternator plug, and the injectors, i'm currently making (almost done) my own vtec and knock sensor "harness" to fit in and look clean.

My Question: On this wire harness there is a single solid white wire that at first i thought was the vtec solenoid wire, similar/same plug on the end and everything. I don't know what this wire is, or what it was suppose to do. Is this one of those single wire o2 sensor wires i've read about? Anyhow i don't like loose wires.

Any Insight would be great thanks!