Hey all, I'm in the process of finding a B18C1 for my 95 Civic EX. Pretty clear on everything, except some wiring. I read on here http://www.jdmhondaparts.com/engine_info.htm that the jdm engine harnesses are not going to work in a USDM car because JDM cars are RHD.

So if I get a JDM engine, what do I have to do for the wire harness and ECU? What, if any manual wiring do I have to do? Somebody clear this up for me, thanks all, keep it real.

 

Just use your Civic harness since you already have Vtec in your car. YOu will need to add a wire for the IAB (secondary butterflies) to A17 and the knock sensor need to go to D3.

All the info you need is here:
http://www.hybrid.honda-perf.org/tech/5gtech.html

good luck.....