i'm doing a swap on my 93 civic dx and i'm for sure that i doing a obd1 dohc zc motor. I know everything in my current swap can bolt up directly to the dohc zc like mounts and d-series tranny and all, but the wiring harness from what i heard needs minor modifications to it for the swap. It will go on but i'm not sure on what minor modifications are needed. I heard that if u were doing this swap, only if u have an SI or HF, u can use ur existing harness without mods to it and bolt in without any problems. I just need help on any info i need for this swap and any necessary modifications that have to be to done for it to work properly. And excuse me for the long paragragh. I just needed to get out what i had to say.