Mystery Plug

[Aroqo]

Hey there folks,
I am trying to figure out what this plug is :
http://s26.postimg.org/w4slg2x6x/IMGP0053.jpg (http://postimage.org/)
free upload image (http://postimage.org/)
It is on my 1990 MT non ABS hatch. I think I may have the wrong harness, but I am not sure. The plug on my car is black( as seen in the picture) the one on the EFI harness is white. The plug above the ECU plug on the EFI harness I think plugs into it, but my connector is different. I need to know what input this plug needs. I checked in the FSM and I can't see the junction in question. It only the shows the junk AT circuit on the wiring schematic( I think I am looking for the F4/E115 junction). I get starter and dash functions, but I don't hear the fuel pump, and the distributor didn't shock my helper. Any help would be spectacular.

[wawazat8402]

I'm thinking it goes to the ASCD (cruise control) box. The one you're looking for clips to the dash support bar under the dash. It will be on the far right side behind the dash where it meets the door panel.

SOHC and DOHC have different connectors but I don't remember offhand which is which. One is white and the other is brown. One has the male connector on the dash side and the other has the female connector.

Hope that helps.