I am swapping a b16a2 from a 2000 civic SI into my 1997 civic hatch CX. I have the b16a2 engine, transmission, shift linkage, cv shafts, engine/trans mounts, computer and wiring harness. I have searched rigorously and cannot find the answer. I'm seeing people saying that I need to use the wiring harness for my d16 and this just makes no sense to me. Can someone explain why I cant just use the b16a2 wiring harness and computer???