So, here's my understanding / breakdown of what I've observed so far. I have a 2 wired IACV.

(92-95 civic DX motor ) used for 2-wired IACV's
(P2E ecu (96+ Civic DX ) for 3-wired IACV's - but there is not an orange wire ( which is used for the 3rd wire in the IACV )
(99-00 Civic EX harness ) used for 2-wired IACV's - No orange wire

At this point, it's looking like I might need to get a P06 ecu so that it won't look for the 3rd ( orange ) wire.

Here is the thing. The wiring harness that's under my hood is OBD2, would it be stupid to get an OBD1 ecu, or is there a way to keep this P2E ecu and solve this issue? Any suggestions/advice is welcomed.