What are the wiring differences between an obd1 LS longblock and an obd2 LS longblock?

I have a 92 CX that I'm dropping in a 96 LS and I am using a P09 wire harness...I already have swapped the injector plugs to obd2 style and I was plugging it all up when I noticed the plug by the crank pulley...Something tells me that its a crank angle sensor and I don't have that plug on the wire harness...I have a few other harnesses but I rather not cut them all up to make one good one...Where is the P09 Harness from? I rewired the Obd 2 LS distributor and used the plugs off an obd1 single cam distributor, so thats all good to go...Any help is appreciated...

Zee
intikab@cs.com