2G Help identify this connector please

[jalby2021]

Was having issue finding why there was no brakes. Figured it out I think (pic) but then saw this black hose with white wire (video) going to nowhere (think o2 senor since no exhaust system)

You must be logged in to view this image or video.

...what is it?

 

[1990TSIAWDTALON]

http://www.dsmtuners.com/dsm-profiles/ is needed to properly give you an answer, but by the way it looks, you already know what it is.