P0301

Technical Definition:

Cylinder 1 Misfire Detected

Trouble Code: P0301
Address: 0x0301
System: Powertrain
Subsystem:
Technical Description:

Possible Causes:

Possible Symptoms:

Cylinder 1 Misfire Detected

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty spark plug 1
– Clogged or faulty fuel injector 1
– Faulty ignition coil 1
– Fuel injector 1 harness is open or shorted
– Fuel injector 1 circuit poor electrical connection
– Ignition coil 1 harness is open or shorted
– Ignition coil 1 circuit poor electrical connection
– Insufficient cylinder 1 compression
– Incorrect fuel pressure
– Intake air leak

Specific Makes:

– Lack/loss of power
– Hard start
– Engine hesitation

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