removing plug ???

G2ic please help me out i am trying to tuck the wires on my engine and i cant get this plug off does anyone have any input for me? i tried pulling twisting(in moderation so it didnt break of course) but nohting happens here check this pic for reference

http://g2ic.com/forums/showthread.php?t=193042&highlight=oil+pressure+sending+unit

the plug i am talking about is noted as the oil temp sensor but is actually the coolant temp switch for the fan or so it says.

Got it done just was the rubber boot that was on it was hardened and just stuck had to cut the rubber covering offbut they are just plugs you have to pull on really hard.

are you talkin about the temp sen. on the coolant housing, or the fan temp switch on the head, or the oil pressure sending unit switch on the back of the block?.
-edit… didnt read above post… lol