So my OBD2 port doesn't wanna work, before you guys mention it I already checked both fuses (underhood and in cabin), the trouble started around December after I had taken the dash out to put in a new heater core. I don't recall unplugging anything from the OBD2 connector but after taking a quick look I saw there was a little 8 slot connector(female) just above the OBD2 port on the harness but I didn't see any other possible connectors that would fit it. I am hoping you guys may be able to shed some light on this one.

OBD2 Port and the 8 slot connector: http://i928.photobucket.com/albums/a...ps1bcd965a.jpg

Under dash approx. above where the OBD2 sits: http://i928.photobucket.com/albums/a...psa3439107.jpg

 

Finally had some time off to do a more thorough inspection of everything, and the soul problem seems to be a loose wire somewhere between the OBD2 port and the fuse box or atleast that is all I can figure as the port is not getting power but the cig lighter fuse and cig lighter itself are totally fine. Does the power wire go straight from the fuse box to the port or does it have any other connections in between. Also a misconception I was told a while back, there is no fuse under the hood related to the port or cig lighter on a 2002 Blazer 4dr 4x4 atleast.