ok I have a 00 EM1 that I bought from some kid he has a b20b engine in it well the kid had a disaster in the wiring I've never worked on cars till I got my civic now I do all the work to all my cars but when I had 1st got I didn't know much of anything so in process of me attempting to fix the wire issue not knowing my engine harness got thrown away I did not know at the time that u are not supposed to throw it away u always keep ur original so my question is what harness do I need for engine and cabin and the other one that goes all on floor and back seat of my Si Ive been going to junk yard but no luck just been getting different harness that don't match up with the cabin one please if anyone could help me it would be so greatly appreciated

 

https://www.ebay.com/sch/i.html?_nkw=em1+harness
https://www.ebay.com/itm/335696351262

ebay, facebook marketplace, google

 

Can I use a base civic coupe harness for it since it’s a b20 from other car nd does that go also for the cabin etc

 

I don't have the offhand experience to know if the fuse boxes are all the same. You have a few different electrical differences between an Si and base model. Like power windows, and sunroof wiring. I assume if you got harnesses that matched the features of your car, you would be good. You could verify this by looking at the parts list on dreamshop.honda.com and see if the part number for the fusebox(s) are the same across all trim levels. I'm too lazy to do that for you. But that's how I would figure it out.

For the engine, any harness should do. You may have to make a couple minor changes, but it should be 95% plug and play.

 

Sweet man thanks appreciate the info I’m gunna go dive right into it see if I can get it going but thanks again bro!