P0300 2007 Nissan Pathfinder -

Question

Hello i have a problem we rebuild the engine when I started and i have misfired in all cylinders but I already check every thing ignition coiol injectors intake like I checked cranckshaft sensor the timing chain fuel compreshor eich cylinder compreshor bue every thing is fine  the only thing I haven't checke is the flywheel has DMF but maybe you can help me what else can be it's a Nissan pathfinder code po300

Answer 1

You have to identified which cylinders are misfiring, then you can swap ignition coils or fuel injectors to figure out what the problem is. You can't have "ALL" cylinder misfiring, the engine will not start. It's possible that the timing was not set correctly.