need help

[Jaybird_1]

my alternater belt poped got that replace and spark plug wires were replace after that it would misfire i dont understand i tryied to do the firing order i dont know why its misfire also my catalyst converted had heated up real bad and car wont start but it sound like its trying also when i do turn it on it on it popes alot like the enginge.all for mitshibishi galant 1996