Have you requested a Wartsila tech to troubleshoot and tune. Your reply made me think of something – if you are a dual fuel facility – are you sure it’s not tripping on reverse power. We’ve tripped on reverse power at start up when a cylinder goes cold and the governor is unable to respond quick enough. Ben Linqvist of Wartsila was able to reset the governor table in the WECS and was able to stop the trip.