G
p0301
Moderate
Genesis · SUVs
Cylinder 1 Misfire Detected
Quick Answer
Error code P0301 on your Genesis SUVs means: Cylinder 1 Misfire Detected. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Worn spark plug in cylinder 1
  2. Defective ignition coil 1
  3. Fuel injector 1 malfunction
  4. Compression loss in cylinder 1
  5. Vacuum leak affecting cylinder 1
How to Fix It
1
Scan with OBD-II to confirm cylinder 1 misfire
2
Remove and inspect spark plug from cylinder 1
3
Check ignition coil 1 resistance and operation
4
Test fuel injector 1 pulse
5
Perform compression test on cylinder 1
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
Related Error Codes
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