Starter Selinoid Wiring

Can someone help me out on the wiring on this? Its a 88 Cherokee 4.0 and i disconnected the leads on the selanoid to replace it... now i am not sure what wire is for the egr, exc. wires are (orange/black, black/white, light green and a darker green) any help would be welcomed... thanks the contacts are EGR, BAL, I and G