P0300 Uncover the Underlying Cause of Engine Misfires

Description: This DTC sets when the misfire detection monitor detects an engine misfire in multiple cylinders or the PCM cannot identify which ... A P0300 engine code indicates a random or multiple-cylinder misfire has been detected by your car's On-Board Diagnostic II (OBD-II) system. P0300 (Random / Multiple Cylinder Misfire Detected). P0302 (Cylinder 2 Misfire Detected). P0303 (Cylinder 3 Misfire Detected). I had been only making short trips for a while and so I took a couple of longer trips the past week to let the engine run a bit at normal op ... Diagnostic trouble code P0300 means your car has detected a misfire in a random engine's cylinders. Misfires occur when the combustion ... Code P0300 is a misfire that doesn't reveal WHICH plug/coil is at fault. Whoever guessed a coil was just guessing. onboard diagnostics when multiple misfires occur randomly in multiple cylinders. The cause is typically a vacuum leak in the intake manifold, ... When the P0300 trouble code appears in conjunction with the check engine light on your Ford Focus ST, it indicates cylinder misfires that are either ... Any opinions as to why I am getting this check engine light code especially after I have already changed out my spark plugs this past summer? A P0300 trouble code means that one or more cylinders is misfiring and not completely burning its fuel/air mixture.