Can anyone please tell me what this black plastic part is, what is it for, the part number, and most important question is, is it possible that it spits out oil? The left side part, (passenger side) has largely noticeable oil and most probably is coming out from there. I am sure it is not from the valve cover gasket. The lower bolt of my dip stick is always wet from oil down to the cover of the exhaust manifold. I have cleaned the engine out of oil to see where the oil is coming from and it is the only part that shows the most possible cause spitting out from the connector. The connector itself is wet from oil.

Thanks in advance.

 

Anyone?

 

More clear picture perhaps? Anyone?