Oil on IMAP plug

[Wiseman]

(07-03-2016 )TeaspoonSean Wrote:  doing an egr tuneup and found that the plug that goes from the IMAP sensor into the side of the engine is covered in oil and crud buildup. I unplugged the end from the side of the nine and the plug is full of oil. Any idea what's going on? The receptacle that goes into the engine seems a bit loose, does it screw in? Clip in? Are there o rings that might be leaking?

I think you talking about the engine brake harness. Can't tell with out picture. Your description sounds exactly like that. If you have so much oil on your I map sensor, your engine would runaway long before you see the oil .