02wrxguy

So my car which is a 2002 wrx with the ej20 motor has recently started misfiring , it idles at like 1300 rpm and is misfiring on cylinder 1 and 3 giving off codes only p0301 and p0303 on the obd2 scanner. Anyone have this problem or think they know the cause? I'm leaning towards a bad fuel rail because both cylinders are fed fuel off the same rail , does that seem like a cause? Still gunna pull the plugs and check em eventhough they have less than a thousand miles on em . Please respond with any info , I miss driving my subie life ain't the same driving auto now : /

MEDIKATEDWRX

Check all ur vacuum lines ...first and replace ur plugs

tourexy

iTrader: (1)

If not check your coilpack also

kindaflush

iTrader: (1)

ya id suggest checking coil packs and your plugs... easiest way to see if you have a bad coil pack is taking off one of the good ones (cylinder 2,4) and switching them with the other ones... also do you have any mods? like possibly a lightened flywheel? because that could cause a misfire code as well. either way good luck man!