[Edit] After looking at the manual, I'm pretty sure it's the ground wires for the coils. The end with the square hole clips to the O2 sensor connector housing, but I can't find where the other end screws into. Anyone have an idea?
I was getting ready to replace the spark plugs when I noticed this mystery wire not connected to anything. It's part of the ignition coil harness and for the life of me, I can't see what it's suppose to connect to. Looks to be the negative or grounding wire. Anyone know where it's suppose to go? Help!