jh89

Hey guys have been searching around for a while but I recently bought a 01 trans am and am new to the ls1 platform and now I'm getting P0300 and P0410 codes I know the first one is multiple misfires and the other is secondary air injection system and everything was fine till I got the check engine light and they both happened at the same time. My question is it possible they are related like can one cause the other or what could causing the problem. Thanks

jh89

Hooked up and watched the misfire counter and only cylinder #3 was misfiring all other cylinders fine but wouldn't I be getting a different code instead of just P0300?