How are the knock sensors wired into the harness.
This is the pigtail that I bought to replace my original:
http://www.sdparts.com/product/12601822/WIRE.aspx
On one side it has 2 wires, one wire for each knock sensor. On the other side it has a plastic connector with 2 wires.
Here's a picture from ls1howto:
So connect each knock sensor wire to each separate wire on the harness.
I say it that way because I'll cut off the harness clip and hard wire the wires to the sensors.

