p0301
Moderate
Alfa Romeo · Sedans & Sports Cars
Cylinder 1 Misfire Detected
Quick Answer
Error code P0301 on your Alfa Romeo Sedans & Sports Cars 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 from cylinder 1
2
Test ignition coil for cylinder 1
3
Check fuel injector operation
4
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 plugs
Ignition coil
Fuel injector
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