oil pressure sending unit wiring

[riley1017]

so i recently installed a new 1.8l motor in my 91 laser and notice that there are 2 wires running down to the oil filter area...... and there is 2 plugs there one on a larger thick round piece and one on a small thin round piece....i am guessing one is my oil pressure sending unit and one is a low oil pressure light?....but idk witch wire goes to witch one.....i looked in my haynes manual and it didnt say anything thanks for any help

 

[miguelmcv]

Both connectors are square. But one has a U figure on one side of the connector, (that's for the Big Round one).
You won't miss. The other connector wont fit into the Big round one.

 

[riley1017]

thanks......wen i bought the car one connector.....the none u one im figuring now was missing..so the one that was there could go any where thank you that solved my problem tho