Mikey3000

my ecu fuse keeps burning. why? the 1st time it did this, was after i reset my ignition timing down to 17 from 24! that was on sunday. then i replaced the fuse, took it for a drive on sunday and on monday, it was fine. then today, after my drive, right as i entered my neighborhood, it happened again. so i replaced it, it started right back up and drove it home. anyone know what could be causing this? it's a 92 civic cx with a h22 in it with a p13 jdm ecu. thanks.