OBD Guide

P226F

Turbocharger Boost Control B Slow Response

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Reduced engine power
  • Delayed response when pressing the gas pedal
  • Unstable engine operation under load
  • Increased fuel consumption
  • Sometimes - a whistle or hissing from the engine compartment

Causes

  • Leak in the turbine control vacuum system
  • Vacuum pump malfunction
  • Clogged or stuck vacuum valves
  • Problems with the turbine control solenoid valve
  • Mechanical damage to the turbocharger

How to Fix

  1. Check the tightness of vacuum tubes and connections
  2. Check the operation of the vacuum pump
  3. Clean or replace vacuum valves
  4. Check and, if necessary, replace the control solenoid valve
  5. Diagnose the condition of the turbocharger

Related codes

Error P226F by Vehicle Brand