P0301 on Kia Vehicles: Cylinder 1 Misfire Detected
Cylinder 1 is repeatedly failing to fire. The cause is almost always its coil, plug, injector or compression. P0301 →
12Complaints mentioning the code
#4Rank among 17 brands
2.0%Share of Kia DTC complaints
In NHTSA owner complaints we analyzed for Kia, P0301 was mentioned 12 times.
Most mentioned models
| Kia Sorento | 5 | |
|---|---|---|
| Kia Sportage | 2 | |
| Kia Forte | 1 | |
| Kia Optima | 1 | |
| Kia Optima Hybrid | 1 | |
| Kia Soul | 1 |
Model years mentioned
Components named in these complaints
- Engine (11)
- Fuel/propulsion System (4)
- Electrical System (2)
Reports with a crash: 0 · fire: 1 · injuries: 0
Often appears together with
P0300
Powertrain
The engine computer sees misfires that jump between cylinders or hit several cylinders at once.
High
P0303
Powertrain
Cylinder 3 is misfiring. Check whether it misses at idle or under load before you blame…
Moderate
P0304
Powertrain
Cylinder 4 is misfiring. Its end or rear position makes water, oil and intake leaks common…
Moderate
P0302
Powertrain
Cylinder 2 keeps misfiring. On inline engines it's a middle cylinder, so rule out coolant…
Moderate
P0087
Powertrain
Measured fuel pressure has dropped well below what the engine computer is asking for.
High
P0137
Powertrain
The oxygen sensor after the catalytic converter on bank 1 stays at a low, lean-looking voltage.
Low
Possible causes
- Worn, cracked or oil-soaked spark plug in cylinder 1, often from a leaking plug tube seal
- Failing ignition coil or cracked coil boot on cylinder 1
- Clogged or leaking fuel injector for cylinder 1
- Low compression in cylinder 1 (burned exhaust valve, tight valve clearance or worn rings)
Related codes
Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.