Tighten up the fuel pipe unions and clear up all the diesel completely using degreaser and a jetwash. Once dry, Let it idle and see where the leak is coming from. If nothing, then take it for a quick drive and check again.
Mine had pools of diesel everywhere, but once i tightened everything up and cleaned it, there's an odd drop leaking from 1 injector seal
Mine had pools of diesel everywhere, but once i tightened everything up and cleaned it, there's an odd drop leaking from 1 injector seal