i have a 1997 honda civic i recently did an engine swap it is a obd1 b18b1 i have almost everything installed and it starts and runs but the battery light is on and the battery is not charging i installed a new alternator but still have the same problem i also got the battery tested at two different stores and it passed both times and was recharged i put it back in but still the same problem any ideas on what could possibly be the issue