The P0300 engine code indicates a misfiring cylinder problem in your vehicle. The misfiring happens when insufficient fuel is burned or when the spark plug gets damaged. In addition, it can damage your car’s catalytic converter in extreme conditions.
P0300 code denotes “Random or Multiple Cylinder Misfire Detected.” This diagnostic trouble code (DTC) implies that your car’s computer detected random or multiple-cylinder engine failures. Along with P0300, you’ll probably see another OBD-II code, ranging from P0301 to P0308. All these codes indicate engine misfires.
The last number in the code indicates the damaged cylinder. For instance, 2 denotes the damaged cylinder in the P0302 code. The cylinder number refers to the cylinder numbered “2” in the engine cylinder configuration rather than the second in the firing order. Never ignore engine code P0300, as misfires can cost a lot of money to fix.
A malfunctioning ignition, fuel, or internal engine failure can all lead to engine misfires. The most common cause of this is defective or worn-out spark plug coil packs, especially if you haven’t had a service. These are some of the factors that the engine code P0300.