A
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
Applies to all models
960952952QF940955949949QF116
Likely Causes
  1. Faulty spark plugs
  2. Ignition coil failure
  3. Fuel quality issues
  4. Timing issues
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
Related Error Codes
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