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P0305 - Cylinder 5 Misfire Detected

Possible causes
- Faulty spark plug 5
- Clogged or faulty fuel injector 5
- Faulty ignition coil 5
- Fuel injector 5 harness is open or shorted
- Fuel injector 5 circuit poor electrical connection
- Ignition coil 5 harness is open or shorted
- Ignition coil 5 circuit poor electrical connection
- Insufficient cylinder 5 compression
- Incorrect fuel pressure
- Intake air leak
Tech notes
The P0305 code means that the cylinder 5 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 5. If the problem persist more tests needs to be done to diagnose problem, see "Possible Causes"
When is the code detected?
Engine Cylinder 5 is Misfiring.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/loss of power
- Hard start
- Engine hesitation
P0305 Description

When 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.

P0305 Information for specific makes
P0305 ACURA Cylinder Number 5 Misfire Detected
P0305 AUDI Cylinder 5 Misfire Detected
P0305 BMW Misfire Cylinder 5
P0305 BUICK Cylinder 5 Misfire Detected
P0305 CADILLAC Cylinder 5 Misfire Detected
P0305 CHEVROLET Cylinder 5 Misfire Detected
P0305 CHRYSLER Cylinder Misfire Fault Detected
P0305 DODGE Cylinder Misfire Fault Detected
P0305 FORD Cylinder 5 Misfire Detected
P0305 GMC Cylinder 5 Misfire Detected
P0305 HONDA Cylinder Number 5 Misfire Detected
P0305 HUMMER Cylinder 5 Misfire Detected
P0305 HYUNDAI Cylinder 5 Misfire Detected
P0305 INFINITI Number 5 Cylinder Misfire Detected
P0305 ISUZU Cylinder Number 5 Misfire Detected
P0305 JAGUAR Cylinder 5 Misfire Detected
P0305 JEEP Cylinder Misfire Fault Detected
P0305 KIA Cylinder 5 Misfire Detected
P0305 LEXUS Cylinder 5 Misfire Detected
P0305 MAZDA Cylinder 5 Misfire Condition Detected
P0305 MERCEDES-BENZ Cylinder 5 Misfire Detected
P0305 MERCURY Cylinder 5 Misfire Detected  P0305 Video
P0305 MINI Misfire Cylinder 5
P0305 MITSUBISHI Cylinder 5 Misfire Condition
P0305 NISSAN Number 5 Cylinder Misfire Detected
P0305 PONTIAC Cylinder 5 Misfire Detected
P0305 SATURN Cylinder 5 Misfire Detected
P0305 SCION Cylinder 5 Misfire Detected
P0305 SUBARU Cylinder 5 Misfire Detected
P0305 TOYOTA Cylinder 5 Misfire Detected
P0305 VOLKSWAGEN Cylinder 5 Misfire Detected
P0305 VOLVO Cylinder 5 Misfire Detected
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