Dear sir, jdm wiring is not connected by them normally. They hook old loom and use same ecu.
These m series engine don't mind same wiring and ecu because they've map sensor based i/j maps so all you need to do is like if its m15 use m15 injectors or m16 injectors but don't use m13 injectors since it knocks.
So basically this is the reason every sensor is working and there's no mil.
