Same engine different type
Had a situation a very long time ago with the same engines. Driving rain, go around from minima both engines indicated fire. So dug into my pockets for a coin to toss, remembered I was in GA and therefore no lose change. Carried on to alternate. Fire indications came and went at the same time, lasted maybe 15 seconds. And no I didn't bury them into the red, just a nice gentle power application to go-around power.