big problem here. i pulled all the pins out of my ecu's a plug and there are two sets of identical pins! a set of yel/blk (igp1)/(igp2) and another set of plain black (pg1)(g101)/(pg2)(g102). so basically i have 4 pins that i have no idea where they go since i forgot to label them. anyone know how to trace each of these back to it's origin?