If the plugs got wet it is SCRAP, it won't recover, it may work a bit but not correctly all the time.
The easiest way to track this down is to do swapsies swap the no2 injector with another and see if the problem moves with the injector.
Just because it is delivering fuel does not mean it is working ok, could be partially blocked, gummed up giving s shit spray pattern, jammed open partially so it floods and is so rich it won't ignite when spark comes along.
tabetha