I'm getting a new(used) ECU to make sure it's not my ECU thats causing my endless idle problems on my y8 swap... (The EACV seems to be working fine, but not getting the right signal from the ECU)

Anyway, I'm using my stock P28 OBD1 and harness on my y8. So if I get another "P28" are there different versions I have to worry about or just any Honda ECU thats is "P28" obd1 (92-95)??