I’ve searched for this and can’t seem to find it. I have a 96 hatch. It is a mini me swap with y7 block and y8 head, y8 intake and Tb. It did have the y7 harness in it and was wired for vtec and the knock sensor. I just recently put a ex harness in it but I have one plug that I can’t find where it would go. Not sure of the year of the ex harness. I know I have to wire in my secondary o2 sensor. But I have this one plug that looks just like a iacv plug but it’s green and the other wire is black. In the ex harness it’s right beside the iacv plug. Car runs fine after the harness swap with no cels other than the o2 cel, which I’m not concerned about because I have a jumper to obd1. I’m just curious what this plug is for. Everything else in plugged up. Here is a photo. Thanks in advance! Just couldn’t find info on it

 

Power Steering Pressure (PSP) switch. It plugs into the high pressure line on your steering rack.

 

Ok thank you! I’ll see if I can find it. I don’t guess it’s something that I really need, I don’t have ps. Thank you for your time!