p0301
Moderate
Genesis · Sedans
Cylinder 1 Misfire Detected
Quick Answer
Error code P0301 on your Genesis Sedans means: Cylinder 1 Misfire Detected. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Remove and inspect spark plug #1
2
Test ignition coil #1 resistance and output
3
Check fuel injector #1 operation and spray pattern
4
Perform compression test on cylinder 1
5
Check for fuel leakage at injector or fuel rail
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Spark plug
Ignition coil
Fuel injector
Compression tester
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