First off I got a 96 Civic Sedan LX automatic, I also have a mini me swap d16y7 block with y8 head and EX tranny. I got all the parts I need except the engine harness. What I want to know is if I need to change the cabin harness in order for the engine harness to work, if not can I use the cabin harness out of a 99 EX Coupe. I need help just with the harnesses I can put the swap in myself. Any and all help will be appreciated. Thanks in advance to everybody!!!!!!

 

As long as you stay within 96-98, you don't need the cabin harness. If you try to use a 99-00 engine harness, you'll need a 99-00 chassis harness, you'll need to basically strip the interior to swap it all over, add air assist, switch to an OBD2B ECU...see where I'm going with this?

Just get a 96-98 EX 5MT engine harness and go with it.

 

or use your current harness and add in vtec wiring/convert iacv.

 

thanks all that helps, I already got the cabin harness for 99-00 and obd2b ecu, so my next step would be to just get the engine harness correct? I got slave/master cylinder, all pedals, pretty much everything but harness to convert to 5 spd.

 

no to the cabin harness, you're way over working this. do you want to add cold start assist? this has been done 10000000000 times. google or read the faqs, learn why you're wrong.

 

No cabin harness, either run the vtec,knock and reverse switch or buy the 96-98 EX engine harness. The cabin harness only needs little modification. There is a guide here, search for it and read it.