i dont believe so... you can upgrade from obd0 to obd1 but i dunno bout downgrading from 1 to 0.. just get an obd1 b16 ecu and be done with it. It will fit fine in your car, and you will use the stock engine harness. you'll need an obd1 vtec subharness though.
also, curious why you're swapping to the b16. if i recall most of what i've read suggests that dropping a b16a into a teg is kind of pointless, and in the end you wont be any faster. b16a has more hp but less tq by a lot. especially the obd0 one. it might be a slightly better idea if it were a obd1 sirII b16a though. Of course if your doing this simply because your stock engine is toast and you need a new powerplant, well then this will suit you just fine.