Troubleshooting steps
Diagnose P0304 using service manual, check related sensors and wiring, repair or replace faulty components
Motorcycle Diagnostic Codes
P0304 – Cylinder 4 Misfire Detected
Cylinder 4 Misfire Detected
Details
Cylinder 4 Misfire Detected detected on Harley-Davidson motorcycle. This diagnostic trouble code indicates a problem that requires attention.
Error typeerror
MeaningCylinder 4 Misfire Detected
Typical causesSensor failure, wiring issue, component malfunction, system fault
SolutionsDiagnose P0304 using service manual, check related sensors and wiring, repair or replace faulty components
Severitymedium
Catalog references
Where this appears
Harley-DavidsonP0304
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What does P0304 mean on Harley-Davidson?
P0304 on Harley-Davidson indicates cylinder 4 misfire detected. Consult service manual for specific diagnosis procedures.
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