Hm..
It's certainly not a wire loom. Even though the surface resembles one of those, this one does not contain any wires and the inside of the tube is oily.
My own bet based on previous posts is, that it is the ventilation for the AOS.
I'm wondering if a previous owner took some other kind of piping to replace it. If so I need to investigate the connecting ends of it.
Anyhow, that's life. Almost done with a job, and a new one appears
