misfireing accent
 

hey, need some help with my 99 accent, getting misfire codes 300 301 302 and random misfire, it will idle fine but when hit the accelorater it skips and does not fire right and doesnt want to go, has no power to drive with and when trying to drive and its skippin like that the engine light flashes, does it reallyyyyyyyy bad on wett rainy days why is that? can anyone help me! :confused:

you need new spark plugs and spark leads