p0300
Moderate
Lexus · Sedans
Random/Multiple Cylinder Misfire
Quick Answer
Error code P0300 on your Lexus Sedans means: Random/Multiple Cylinder Misfire. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Perform engine compression test
2
Check spark plugs condition
3
Test ignition coils with multimeter
4
Inspect fuel pressure regulator
5
Check engine 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 filter
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