[fbirdfreak]

So I'm having more and more issues with my 2000 trans am...

So now our issue is that every few hours the check engine light will come on with a p0300 code (multiple cylinder misfire) when there's no misfire... so for a few hours the light will stay on and then turn off and then maybe another day later it'll turn back on and turn off... and I can't figure for the life of me what it is, the sheet from autozone said it could be like 7 different things (spark plugs bad o2 sensor vacuum hose leaks etc)

Anyone happen to know a way to narrow this issue down or will it just be a replace everything until it goes away kind of thing? I bought plugs two days ago on discount from rockauto and will have them in on sunday..

Thanks again!
-Luke