Please help identify this hose. Why does it keep collapsing?

[mat59]

Hi all,

The hose at the top of the pic below was fitted as a replacement to my OEM hose as it kept collapsing. My specialist could not get an OEM hose from Porsche as they are out of stock. So this temporary hose was installed. I need to order one from Germany. Any idea of the part number of the hose? It's the one at the top of the pic below. As you look into the engine bay, it's the hose at the top back of the engine compartment just over slightly to the right.

Any idea why the original kept collapsing? This was happening under any throttle and would cause the engine to cut out. My specialist put it down to the hose losing it's structural rigidity but I'm not convinced. The temporary replacement one in the pic is kinda doing the same thing but to less of an extent because the hose is narrowing where it bends.

Another pic. It's the one in the middle left.

Thanks

Edited February 9, 2015 by mat59

[mat59]

Found this tyread which looks to be the identical same problem as I've been having. Unfortunately there's no conclusion to the thread.

http://www.6speedonline.com/forums/996-turbo-gt2/125754-collapsed-vacuum-hose-eractic-idle-please-help.html

It's number 26 below.

Any ideas?