can i use a 92-95 wires for mini me swap 91civic

[jason22ga]

hi im putting a vtec head from a 93 ex on my 91 civic si hatch but i have the complete engine and interior harnesses from a 92 si can i use these wires instead of buying a conversion harness and i do have the p28 ecu let me know asap if anyone knows or knows a website with the wiring diagram
thanks,jason

 

[1991hb]

You don't need to switch out the whole harness, just use the one you have now. If you putting it in a SI than your already wired for multi-point. Just add a wire for vtec.