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P0668

Overview

Code

P0668

Code Type

P

Code Class

P0

System

Engine

Severity Level

Medium

Emissions Related

true

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0668 indicates a malfunction in the intake manifold runner control system

Symptoms

Rough idle Check Engine Light

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

Intake manifold runner control system

Possible Causes

Faulty manifold runner solenoid Poor wiring connection

Diagnostic Steps

1 Inspect manifold runner solenoid 2 Test manifold runner control system

Drive Safety Notes

The malfunction can affect fuel efficiency and engine power

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