i noticed this hose awhile ago because the loop was completely smashed in so i'm pretty sure it wasn't being used, i wiggled it a little for my friend, and it snapped off. apparently i can still drive with it. i want to know what it does though and how important is it? because my engine light came on a day later, and my idling stays at 2-3 thousand RPM's but coasting, goes down when i completely stop.
i did just put in a new 67mm throttle body but i think the change for that is all good now, hopefully. but a broken hose should be taken care of
inside the broken hose as in the video, its full of metal, so i don't know if it does anything..