Weellp... basically it comes down to thiss.. "The little green thing"

[whoismarco]

How's it goin folks. .My name.. Marco ..

I've got a buddy of mine who's got a MazdaSpeed Protege that has this Green THING! .. that we can't seem to find anything about.

and HERE.. is where it is....

Zoomed for ya..

Thoughts..?? .. anyone???

 

[JiggaBro]

no idea.... but you got my attention with the zoom

 

[Jedidiah55]

most likely a check valve to prevent positive pressure in a vacuum lines

 

[njaremka]

that's the VTCS delay valve. it is supposed to be there.