P0301High severity
Cylinder 1 Misfire Detected
A misfire was detected specifically in cylinder 1.
Common causes
- Faulty spark plug or coil on cylinder 1
- Clogged fuel injector
- Low compression
- Vacuum leak
Possible symptoms
- Flashing Check Engine Light
- Rough idle
- Engine vibration
- Loss of power
Code breakdown
P — System
Powertrain (engine, transmission, fuel & emissions)
0 — Type
Generic (SAE standard, common to all manufacturers)
3 — Subsystem
Ignition system or misfire