Hello everyone am new to this page don't know if am posting in the right category but i have a problem i need help. I have my check engine light on, i scanned my car and the codes that i got were P0301,P0304,P0300,(i know the 3 codes are misfires) and P1399(what does this code mean) and after the scanner gives me the codes it also says Mil on monitors, 2 inc, evap, egr, 6 ready misfire, fuel, comp, 02 snsr, and 02 htr.. What does all this mean..Thank you guys in advance..