P0301 — Cylinder 1 Misfire Detected
PowertrainhighCylinder 1 is not burning fuel properly.
Symptoms
- Rough idle
- Shaking when accelerating
- Check engine light (may flash)
Common causes
- Bad plug or coil on cylinder 1
- Clogged injector
- Vacuum leak near cylinder 1
- Low compression
How to fix
- Swap cylinder 1 coil with another — if the misfire moves, replace the coil
- Check the spark plug
- Check the injector
- Compression test
Can I keep driving?
Short distance only.
These are the general meanings. Some companies use a code a little differently — confirm with a scanner and your car's service manual.