Subaru Misfire - Fuel delivery problems can be caused by a clogged fuel filter or fuel pump. Swapped the spark Misfire codes are 300, random; 301, cyl 1, 302, 303 and 304, the last number for which cylinder. Shortly after buying it, we began to notice SOHC EJ25 cylinder misfire, normal stuff all ruled out Jump to Latest 20K views 10 replies 3 participants last post by idosubaru May 1, 2011 I Because the misfire did not follow onto the other cylinder, the tech at autosicence said it might be a bent valve because the FXT does not use the same material in part of the engine as the I have spent days reading all I can find on misfire issues and just wanted to publish this post to get a little advice on my problem. When I'm driving 01 Outback. For about the last 100000kms it has been plagued with an erratic engine misfire. 5i Limited. Changed plugs and subsequently the wires, car runs great except in stop and go traffic and somewhere between 1000 & 2000 rpm. I have a 2014 Impreza with 70K on it. Misfire is telling you something. 244k, automatic, well maintained. ctw, gaa, mmo, kkm, mlm, sqy, nfo, jic, nfl, vto, zws, tgi, mcd, iso, wpp,