What is this part?

[jessicacrowe12]

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I have a noise coming from this area. Anyone know the name of this part? Also, I've got a code concerning the OCV valve. Would this be oil control valve or oil consumption valve, I can't seem to find a picture as to where that is located on my car either. Oh and its a 2007 Mazdaspeed 3 if that matters.

 

[MSMS3]

Describe the noise in detail. Is it at idle only? Does it change pitch or go away with rpm? More info, pleasen