p0300
Moderate
Infiniti · SUVs
Random/Multiple Cylinder Misfire Detected
Quick Answer
Error code P0300 on your Infiniti SUVs 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 vehicle for specific misfire codes
2
Inspect and replace spark plugs if needed
3
Check ignition coil resistance with multimeter
4
Perform fuel system cleaning
5
Check for vacuum leaks
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 pack
Fuel system cleaner
Vacuum hose clamps
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