Constraints imposed in the last decades on emission reductions heavily influenced the evolution of technologies whose work rests on internal combustion engines. Stricter carbon dioxide emission regulations shifted the focus towards fuels like Hydrogen, with the consequent rise of uncertainties regarding the combustion profile. One of the crucial points analyzed by INNIO, an Austrian company manufacturing power-generating units, was the instability of a fuel like Hydrogen and the possible risk of compromising the lifespan of essential ICE components. Given the imprevedibilities and abnormalities encountered during the combustion process, a way to identify missing combustion cycles, called misfires is a crucial topic.