working on a 2008 chevy aveo and car has engine problems ..trying to diagnose problem but obd port connector wires are removed from connector itself someone previous removed wires and did not remember which order they were now iam trying to figure out oreintation of wires no info anywhere ..have 7 wires 2 solid black wires, 1 black with white, 1 yellow, 1 red, 2 green would appreicate any help