Po300 code misfire what is the problem

P0300 means that there is a "random misfire" measured by the engine's processor. This means one or more of your cylinders are misfiring for an unknown reason. It could be one or more spark plugs or coils, a base engine issue, a fuel injection issue, even an air intake issue. Too hard to say without performing the necessary testing hands on to see what is going on. www.repairpal.com/repair-shops