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P0308

Overview

Code

P0308

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 P0308 indicates a misfire detected in cylinder 8

Symptoms

Engine vibration; Loss of power

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 affect engine smoothness and emissions

Possible Causes

Ignition coil or spark plug failure

Diagnostic Steps

1 Identify misfire cylinder; 2 Inspect ignition components; 3 Test fuel injector

Drive Safety Notes

Continued driving risks catalytic converter damage

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