the firing order is 1 3 4 2....cylinder 1 is the one on the far right if you are staring at the engine. Now for the cap. I'll try to explain this to you as best i can since i just recently put new wires on my car. If you are staring at the cap from the the passenger side of the car ,he bottom prong on the left side is where the wire from cyl 1 goes. After you plug that up,continue clockwise around the cap remembering the order is 1 3 4 2. Hopefully this isnt too confusing.