P0304 2009 HONDA ACCORD - Cylinder Number 4 Misfire Detected
P0304 2009 HONDA ACCORD Possible Causes
- Valve adjustment
- Faulty spark plug 4
- Clogged or faulty fuel injector 4
- Faulty ignition coil 4
- Fuel injector 4 harness is open or shorted
- Fuel injector 4 circuit poor electrical connection
- Ignition coil 4 harness is open or shorted
- Ignition coil 4 circuit poor electrical connection
- Insufficient cylinder 4 compression
- Incorrect fuel pressure
- Intake air leak
How do I fix code P0304 2009 HONDA ACCORD?Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the P0304 2009 HONDA ACCORD code
Labor: 1.0The cost of diagnosing the P0304 2009 HONDA ACCORD code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
When is the code detected?Engine Cylinder 4 is Misfiring.
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/loss of power
- Hard start
- Engine hesitation
P0304 2009 HONDA ACCORD DescriptionWhen a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring.
More InformationNeed more information on how to fix the P0304 2009 HONDA ACCORD code?
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Need more help?Get the P0304 2009 Honda Accord code diagnosed by a professional: Find a repair shop in your area
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