hey guys i have a b18c5 motor trying to put it in a DX hatch. The full wiring harness with motor looks like from what i can see like 3 plugs not making any connections. Does anyone know what wiring harness i wudd need for the swap? thanx alot for all input...

 

use ur civic harness and modify it to fit

 

yeah you should only need maybe the old injector plugs from the B18 harness, run a new vtec line and depending on the year maybe a obd 2 to obd 1 conversion kit you can get for cheap somewhere on this forum or ebay. you need to let us know what year DX hatch your putting it in and what year the engine came from to know if you will need a obd conversion kit to plug the B18C5 Ecu into the old harness. It's been a while so you might need to do more than just injectors but with the B18 harness you have all the plugs you need except for the OBD stuff depending on years

 

well it was a 97 hatch and i kno its a OBD II b18c5. The guy who did the swap b4 me i guess rushed it and i have the CEL on. I jumped it and it threw out like 7 codes. i popped the hood and i saw lots of unconnected plugs. i really dont kno what to do.

 

I would take it back to them, that's why you check all the work that is done at shops.

 

All you need is a 96-98 civic ex obd2a wire harness. Only a few wires need to be lengthened. There is not going to be an obd conversion needed, unless it is an obd1 jdm type r. The injector plugs are fine and do not need to be changed. Find out what the codes are and go from there. If you are using a usdm ecu with a jdm engine the inevitable p1337 will always be there unless you do the crank sensor conversion. (not necessarily needed). Also, you can use your exsisting dx harness, but you will be modifying it alot more than if you were to stick with the ex harness. PM me if you need to get in depth with it.

 

iite b20 i appreciate ur input where can i get the harness online? Any sites u kno of?

 

Check ebay for used harnesses in perfect condition. expect to pay around $100-$150. I paid $100 a piece for both of my harnesses. Also, you can get them from hasport or place racing. You might want to keep your eye on the banners that frequent this forum. (I have no experience with them though)