i should be telling you to do a search! but your lucky im nice today!!
im gonna say this very simply, you want details and have msn add "paultheshocker@hotmail.com
ok, first off there is no such thing as an obd 1 b16 a2, b16 a2 came in obd 2 cars only.
so im assuming you have a b16 a2 out of a 99 / 00 civ SI??
use your d series harness.. if your car didnt have v tech you gotta add the two v tech wires and have the connector for the vtech sol. and v tech pressure switch.
everything will plug in. except you wont have a knock sensor on your harness, dont worry about it. and your purge valve connector, you will need an obd 2 one, good luck, its not essential so i left mine unplugged!
now you will need obd 1 injectors, they dont have to be b series ones, they can be your old d series ones, you will need an obd 1 alternator, (has to be a b series, and integra obd 1 will work, prolly the easiest to use) and you will need an obd 1 V tech distributor, d series wont fit, i used a 95 GSR one. that pretty much takes care of your wiring issues. also you need del sol V tech shift linkage, or a b series linkage that will need to be extended. you will need 99/00 civic si drive axles.
i think your civ might have the catalytic converter right at the exhaust manifold., if it does you will need use hte b series manifold and downpipe and buy a cat to weld in under the car behind the oil pan!
all mounts will fit except the rear t bracket, i ordered a 94 del sol DOHC and it wouldnt fit, i think honda sent me the wrong mount to be honest, so i ordered a 97 dohc bracket and it fit like butter, all other stock d series mounts will fit!