Code result

P2006

Intake Manifold Runner Control Stuck Closed

Moderate severity

What it means

The IMRC flap on bank 1 is stuck in the closed position and cannot open at higher rpm. Top-end power suffers because the runner is restricted, and the engine may breathe poorly above mid-range.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Carbon deposits seize flap closed

    high

    One of the most commonly reported causes for this code — check this first.

  • Actuator stuck or vacuum line collapsed

    medium

    A plausible cause — test and verify before replacing parts.

  • Carbon or debris buildup preventing free movement

    low

    Less common, but worth ruling out after the more likely causes.

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