p0301
Moderate
Jeep · SUVs
Cylinder 1 Misfire Detected
Quick Answer
Error code P0301 on your Jeep SUVs 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
Inspect spark plug in cylinder 1 for wear or fouling
2
Check ignition coil voltage and resistance
3
Test fuel injector pulse timing
4
Perform compression test on cylinder 1
5
Replace faulty components and clear code
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
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