what yr of swap? i'm sure its obd2 into ur 95 civic... are u doing it urself??
if so, or if not, and depending on money budget, u might as well get a obd2a/b to obd1 conversion harness. then get u a chip to have it done by a local shop to eliminiate all ur codes.
did u get a obd2 ecu from the swap?
u have alotta questions to ask urself and to figure which path you'd like to take....