Iust installed my engine and starter wont turn over. I do hear a click when i turn the key. It was getting dark so i gave up. My starter has three terminals. My understanding is on my 90 iroc only 2 will be used. Ihave the three wires on the big terminal and the purple on the left terminal (small). If the purple wire was on the wrong terminal would this keep my starter from engaging. From what i read it has to be on the s terminal. Please help i want to drive before snow flies.