Replaced the alternator last fall along with the tensioner and belt. Replaced alternator with a Duralast. Since then my "Check Charging System" keeps flashing on, but will turn off a couple seconds later. Can happen numerous times throughout a long drive. Belt has plenty of tension. Trying to avoid taking the alternator back out again and redoing the work. Does this sound like a bad alternator, or is it because it's an aftermarket part that my Honda doesn't like? Anyone else experience this before?