oil pressure sending unit plug wiring

I pulled the motor out of a 97 camaro z28 back in july and because of the motor guy who rebuilt it I am now in november just putting it back in. My problem is that I have everything hooked up except I can not find the plug for the oil pressure sending unit . I am not sure whether it was in the harness that goes down the drivers side rear block to the trans or in the harness that comes up the drivers side intake. I have searched for hour looking for it any help or pictures would be appreciated.