Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTCS P0300-P0306: Random Misfire Detected: Notes
1998 Lexus SC 300SECTION Notes
- DTC P0300 = Random Misfire Detected
- DTC P0301 = Cylinder No. 1 Misfire Detected
- DTC P0302 = Cylinder No. 2 Misfire Detected
- DTC P0303 = Cylinder No. 3 Misfire Detected
- DTC P0304 = Cylinder No. 4 Misfire Detected
- DTC P0305 = Cylinder No. 5 Misfire Detected
- DTC P0306 = Cylinder No. 6 Misfire Detected
NOTE:
When 2 or more codes for a misfiring cylinder are recorded repeatedly, but DTC P0300 is not recorded, it indicates that misfires were detected and stored into ECM memory at different times.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.