Lower engine/tranny harness help!! ka-sr s13

[iwishiwas-all*]

Ok, I just received my new lower harness from courtesy, it is supposedly a DOHC KA 5-spd harness. I removed my hacked up old one, but in order to install the new one I have to figure out what to do with these wires and plugs shown below:


On the top of this picture you can see two plugs off of the sr20det harness. Those plugs are (from left to right) : (Green/white - Blue/green), and (Green/yellow - Black)

All 4 of those wires are accounted for on the ka harness and I plan on cuttin off the sr connectors and splicing them onto the ka harness.

Now this still leaves two connectors on the new ka harness unused/unknown as shown in the pic. Those connectors are (from left to right on the KA harness, lower half of the pic) as (yellow/green - black) and (yellow/blue - black).

I had to cut the speed sensor portion of the sr20 harness off and leave it on the car because there was no plug that i saw to disconnect it, and i can only assume that the speed sensor is the (yellow/blue - black) connector.

If that is true, then what is the (yellow/green - black) wire pair do?
do i need it on the sr20 motor?

please help
thanks!