OBD Guide

P259F

Turbocharger A Boost Control Position At High Limit

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at high speeds
  • Check engine light comes on
  • Noises from the turbocharger

Causes

  • Turbocharger control mechanism jammed
  • Turbocharger control solenoid valve malfunction
  • Problems with control system wiring or connectors
  • Mechanical damage to the turbocharger
  • Turbocharger control position sensor malfunction

How to Fix

  1. Check the turbocharger control mechanism for freedom of movement.
  2. Diagnose the operation of the control solenoid valve
  3. Check the integrity of wiring and connections
  4. Test turbocharger control position sensor
  5. If necessary, replace the turbocharger or its components

Related codes

Error P259F by Vehicle Brand