P0301
P0301 means "Cylinder 1 Misfire Detected". Severity: 🔴 High. Avoid driving if possible — this can cause damage or be a safety risk. Get it diagnosed right away.
What the P0301 code means
| Code | P0301 |
| Definition | Cylinder 1 Misfire Detected |
| System | Powertrain (engine & transmission) |
| Type | Generic (SAE standard) |
| Subsystem | Ignition System or Misfire |
| Severity | 🔴 High |
Common causes of P0301
- Bad spark plug/coil on cylinder 1
- Fuel injector fault
- Low compression
How to fix P0301
- Replace plug/coil on cylinder 1
- Test the injector
- Do a compression test
Always confirm the diagnosis with a scan tool and live data before replacing parts.
Is it safe to drive with P0301?
Avoid driving if possible — this can cause damage or be a safety risk. Get it diagnosed right away.
P0301, answered.
What does P0301 mean?
P0301 stands for "Cylinder 1 Misfire Detected". It is a generic (sae standard) OBD-II powertrain trouble code.
Is it safe to drive with a P0301 code?
Avoid driving if possible — this can cause damage or be a safety risk. Get it diagnosed right away.
What causes P0301?
Common causes include: Bad spark plug/coil on cylinder 1; Fuel injector fault; Low compression.
How do you fix P0301?
Typical fixes: Replace plug/coil on cylinder 1; Test the injector; Do a compression test. Always confirm the diagnosis before replacing parts.