PowertrainP0300
SeriousSeverity: Serious - have it checked soon
Random/Multiple Cylinder Misfire Detected
Key terms: Catalytic converter: cleans the exhaust gases · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions
1What it means in plain English
Your engine is misfiring on more than one cylinder. The fuel in those cylinders is not burning properly.
2Common causes
- Worn or fouled spark plugs
- Faulty ignition coils
- Vacuum or intake air leak
- Low fuel pressure (weak pump or clogged filter)
- Faulty fuel injectors
- Low engine compression
3Can I drive?
Drive gently to a workshop. If the check-engine light is flashing, stop as soon as it is safe and have the car towed: a flashing light means the misfire can overheat and damage the catalytic converter.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 44
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| BAIC Motor | P0300 | Engine misfired Brand | Powertrain |
| Mercedes-Benz | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| BMW | P0300 | DME: Misfire with cylinder cutout, total Brand | Powertrain |
| BYD | P0300 | Cylinder misfire detected Brand | Powertrain |
| Chery | P0300 | Multi cylinders misfire Brand | Powertrain |
| Chrysler | P0300 | Multiple cylinder misfire Brand | Powertrain |
| Daewoo | P0300 | multi cylinder misfire Brand | Powertrain |
| Daihatsu | P0300 | Misfire detection Brand | Powertrain |
| DFFS | P0300 | Misfire fault Brand | Powertrain |
| DFFX | P0300 | Cylinder misfire detected Brand | Powertrain |
| DFXK | P0300 | Multi cylinders misfire Brand | Powertrain |
| EOBD | P0300 | Deteksi misfire silinder acak/ganda Brand | Powertrain |
| Ford | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| Geely | P0300 | Misfire Fault Brand | Powertrain |
| GM | P0300 | Engine misfire detected Brand | Powertrain |
| Great Wall | P0300 | Cylinder misfire detected Brand | Powertrain |
| Hafei | P0300 | Cylinder misfire detected Brand | Powertrain |
| Holden | P0300 | Engine Misfire Detected Brand | Powertrain |
| Honda | P0300 | P0304 update Brand | Powertrain |
| Hyundai | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| Isuzu | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| Land Rover | P0300 | Refer to -00 possible sources Brand | Powertrain |
| Mahindra | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| Maserati | P0300 | Multiple cylinder misfire Brand | Powertrain |
| Mazda | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| Mitsubishi | P0300 | Misfire detected Brand | Powertrain |
| Nissan | P0300 | Multi cylinder misfire Brand | Powertrain |
| Opel | P0300 | Engine misfire detected Brand | Powertrain |
| Perodua | P0300 | Misfire detection Brand | Powertrain |
| Peugeot | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| Porsche | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| Proton | P0300 | Misfire detected Brand | Powertrain |
| Renault | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| Saab | P0300 | Fehlzündung erkannt Brand | Powertrain |
| MG (SAIC) | P0300 | Multiple Cylinder Misfire Brand | Powertrain |
| Smart | P0300 | Random/Multiple Cylinder Misfire Detected SAE | Powertrain |
| Sprinter | P0300 | ENV_ _Datum3 Brand | Powertrain |
| Subaru | P0300 | at cold start Brand | Powertrain |
| Suzuki | P0300 | Random / multiple cylinder misfire detected Brand | Powertrain |
| SWM Motor | P0300 | Engine fire Brand | Powertrain |
| Tata | P0300 | Random Misfire Brand | Powertrain |
| Toyota | P0300 | Single cylinder or multiple cylinders misfire Brand | Powertrain |
| Volkswagen | P0300 | Random/Multiple Cylinder Misfire Detected Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Extended variant codes 9
These 7-character codes are manufacturer-specific variants of P0300 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P030000 | No description available | Powertrain |
| Porsche | P030000 | No description available | Powertrain |
| Sprinter | P030000 | No description available | Powertrain |
| SsangYong | P030000 | Random/Multiple cylinder misfire detected Brand | Powertrain |
| Mercedes-Benz | P03001F | Combustion misfiring has been detected. There is a sporadic fault. Brand | Powertrain |
| Mercedes-Benz | P030021 | Combustion misfiring has been detected. The signal amplitude is less than the minimum amplitude. Brand | Powertrain |
| Mercedes-Benz | P030022 | Combustion misfiring has been detected. The signal amplitude is greater than the maximum amplitude. Brand | Powertrain |
| Mercedes-Benz | P0300FA | No description available | Powertrain |
| Sprinter | P0300FA | No description available | Powertrain |
6Related codes
Browse Pxxx codes or P030xx codes.