There are two wires that comp out of the IAB on a gsr motor? To both of tem plug into the ecu? Where if not?

 

I know this is reallllllly old, but i was wondering if you found out this problem because I currently have the same question. I figured out 1 goes to the ecu and the other a 12v power sorce, but the question is which plug or wire is it, top or bottom?????? Oyea, Stratford ct?? Bloomfield next 2 hartford

-kelz