p0300
Moderate
Alfa Romeo · Sedans & Sports Cars
Random/Multiple Cylinder Misfire Detected
Quick Answer
Error code P0300 on your Alfa Romeo Sedans & Sports Cars means: Random/Multiple Cylinder Misfire Detected. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Scan for related misfire codes (P0301-P0308)
2
Inspect and replace spark plugs
3
Check ignition coil resistance
4
Perform fuel system cleaning
5
Verify ignition timing
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 coils
Fuel system cleaner
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