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P0305

Overview

Code

P0305

Code Type

P

Code Class

P0

System

Engine

Severity Level

High

Emissions Related

true

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0305 indicates a misfire detected in cylinder 5

Symptoms

Loss of power; Rough idle

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Cylinder misfires disrupt combustion balance

Possible Causes

Faulty ignition components; Fuel injector issues

Diagnostic Steps

1 Identify misfire cylinder; 2 Inspect spark plug and coil; 3 Test injector function

Drive Safety Notes

Driving with misfires risks catalytic converter damage

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