OBD Guide

P206F

Intake Manifold Tuning (IMT) Valve Stuck Closed Bank 2

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Reduced engine power
  • Deterioration in acceleration dynamics
  • Increased fuel consumption
  • Uneven engine operation at medium and high speeds
  • Check Engine Light Is On

Causes

  • IMT valve mechanism jammed
  • Control solenoid valve malfunction
  • Open or short circuit in control circuit
  • Contamination or carbon deposits on the valve stem
  • Problems with the vacuum drive (if the system is vacuum)

How to Fix

  1. Check the condition of the IMT valve and its mechanism
  2. Check power supply and control circuit integrity
  3. Clean the moving parts of the valve from carbon deposits
  4. Check vacuum system operation (if applicable)
  5. Replace faulty IMT valve if necessary

Related codes

Error P206F by Vehicle Brand