2002 Forester S manual
Hey guys. Recently my Forester started running a little rough. I changed the spark plugs and wires because they were old. Didn't help or make worse the condition, but over the last month it has gotten bad. Sometimes it runs fair and other times I have to ride the clutch while taking off from a stop or it will stall. My cel has always come on and off from time to time due to my exhaust, but it came on and stayed on for awhile. I got it scanned and have p0301 p0302 p0303 and p0304 which are misfire codes one each cylinder. I seafoamed it with no improvement. I am kinda thinking the chances of all the injectors being dirty is not that likely (since I have misfires on all cylinders.) Any Ideas? Ignition coil going maybe? Its weird that it isn't terrible sometimes but then gets really really bad at times. Like i started it and it was idling smooth. I went inside to grab something and come out and its about to stall. I have hesitation when trying to accelerate, and sometimes it seems like my rpms dont want to go up when I am flooring it at cruising speed. Any help would be much appreciated!