I have changed some bits and pieces in my motorbay and have one wire left i dont know where to put

I have looked all over the bay but cant find the place for it, so does anyone have a engine diagram for a fiesta 1.8s ´93 ?

Its a female plug with 2 holes, and the wires are green-yellow and blue-green i think and the number on the plug says ES88A

 

dont no where the wire goes but go and have a look in the haynes manual for your car they got wire diagrams in there should be able to help..