Help identify this part please?

[gpgold]

Hi Everyone.

So I see a loose plug type thing hanging close to my oil filter. It seems to be the part thats pictured to the left of the oil filter in the attached pic (the grey plug). What is this?

http://i1204.photobucket.com/albums/bb403/gpgold/plugthing.png

 

[Darwin1138]

That thing goes to a power steering pressure switch