Did you change the spark plug wire and plugs yet? It's always a good idea to draw a diagram of which spark plug wires plug into which coil pack. I put masking tape at each end of the wires, based on where they plugged into the coil packs. I made the one farthest to the passengers side #1, then numbered each wire as I pulled them off of the coil pack, moving toward the drivers side, which I called #6. Then I matched up the wires by length, and transferred the numbering to the new wires, then reinstalled. Which ever way you do it, just keep track of which plug wire goes to which coil pack post.