harness help
 

http://www.lt1swap.com/stock_ls1.jpg

What is CKP and also what is the connector just above that

CKP = Crank Sensor? Are there three wire to that connector? If the colors are

Light Green wire
Blue/White wire
Yellow/Black wire

Pretty sure its crank shaft position sensor.

The one above it, oil pressure sensor maybe?

Check the wires, 3 wires here too I think

Grey
Tan/White or maybe its just tan
and Black

yea w wire with those colors. I thought I hooked that up tho. I gave up on the car today. Was hoping to have it all done but screw it. The one above it is not oil psi it doesn't have the length.

Put some power to the connector pins, then probe the pins on the PCM connector with test light or multimeter. Look up the PIN number for your year harness to find out what it goes to.

it was definitely the crank position sensor connector. Still cant figure out what the tiny 4 pin connector is tho. I think it is a diagnostic port or something. I refused to believe it was the crank position sensor because I remember hooking it up, then I looked at a pic of it and I got the cam sensor confused with the crank sensor. Apparently I spent too much time drinking this weekend.