I just found out today that my Jdm B16 has a p61 and not the ECU that it should. Is this hurting it in any way, is it better? I'd imagine whatever ECU is for the Jdm B16 would be best... Any help would be great thanks.

 

The P61 is for the B17. It's not hurting it, I haven't looked at the maps to see the differences though. My friend has a B16 in his 92 GS-R (don't ask) and it runs fine, despite the cars appearance...