Yeah, easy to get HT leads mixed up too! But I was thinking of wires from ignitor to coils themselves. Notice that both igniter trigger wires going to coils are YEL/BLK, but they are NOT interchangeable. Coming out of igniter, 1+4 trigger is yel/blk and stays yel/blk all way to coil. However, 2+3 trigger is BLK/YEL coming out of igniter and turns into YEL/BLK after final connector. So go back to very source, igniter itself, and trace each blk/yel and yel/blk wire all way to coils and make sure each one is connected to proper coil.