I have a 91 civic dx sedan, my problem is, how do adjust the corner lights to eliminate the spacing gap between the headlight and the corner light

 

You don't. The gap is just there because they are separate pieces and you don't want the head light to rub the corner light when you adjust the height of your beams.

 

Thanks man make so much sense, another question, do you know where the eavc is located (electric air control value) or the iacv, my car is surging really bad, and cutting off but turn back on like nothing happened