Ok so I'm still dealing with my misfire issue, my plan at this point not in this specific order is to seafoam through the bpv line, and change the spark plugs. Should I seafoam before I change the spark plugs? Should I change my oil as well? Should I be adding it to my gas tank as well? If so do I have to run my gas all the way down before doing oil/spark plugs? As for the procedure for seafoaming...I've heard warm car up to normal temp, very slowly add seafoam into bpv line. Should I be giving it gas at this time as well? And after I get done do I let it run for awhile, drive it, or turn it off? Any suggestions would be great, thanks.
02' WRX 4eat 82k miles