need help with wiring
 

alright guy, i just got my S4 wireharness, AFM, & map sensor today. everything is still on the harness except for one plug i think. I found two of the connector for the ECU but i'm missing one. the connector on the very right or #3 is the one im missing. can someone please tell me what this plug is? will post pics once i get the digicam back.

you actually need two harnesses. Theres the engine bay one and the dash one. the dash one does stuff like control the coils and provides power to the EFI system

EDIT: you gotta strip down the dash harness to only the stuff that has to do with the efi system tho

can i get it off any 2nd gen or does it have to come off a TII