Does anyone know what tube #18 circled in the attachment does?
I removed my Throttle Body to clean it and found this tube. It's connected to the main intake tube, but it does not appear to do anything. Its closed on the right end at the nipple. The nipple end fits into a rubber bushing/grommet #17 on the throttle body support bracket. The part number in PET is 996-110-242-00 and its just called "pipe". It looks to me like its just taking space, but Porsche must have put it there for some reason?
Sorta like a human appendix, just there for some long forgotten reason...?
The car is a 1998 2.5 with Tip.
