I need to know where the second wire on the wiring harness of the starter goes. The one closet to to the engine with the little square plug in. I took out the wngine and now cant find the damb thing.... please help me someone

 

I'm at school now, so i'm not looking at it (i will when I get home), but....

could it be the oil pressure sensor?

 

No i have the pressure pluged in already. Its the 2nd to last wire before the starter wire.