2003 Nissan altima cylinder misfire 2003 Nissan Altima Misfire -code 301 - YouTube Apr 23, 2014 · I had to replace a valve cover and ignition coil because of code 301 for cylinder 1 misfire. Skip navigation 2003 Nissan Altima.... Source Source Source Source Source Source Source Source Source Source Read Also: 2003 Nissan altima cylinder 4 misfire Cylinder 1 misfire 2003 nissan altima 2003 Nissan altima misfire Nissan altima misfire 4Th cylinder misfire nissan altima 2006 Nissan altima cylinder misfire