i swapped a obd-0 b16a into my buddys 91 hatch...and i'm wondering whats the best way to wire the new engine
some have told me to leave the harness on that the motor came with ...and some have told me to take it out and use the one from the D 15... i already ran the new wires for the mpfi ..any suggestions would be greatly appreciated.
i've tried looking at swap guides for this but they were all very vague..

 

well me and my friend put a b16 in my 91 and we used the stock d16a6 wiring harnes if you do that you will have to wire the vtec up and the nock sensor as well as the o2 sensors and you have to pin then into the ecu but if you have a b16 wiring harness use that it would be the best you already have all thee plugs there