OBD Codes

P0049

Turbo/Super Charger Turbine Overspeed

Criticalturbo

Overview

The P0049 code indicates a turbo/super charger turbine overspeed condition has been detected by the PCM. This code relates to the turbocharger/supercharger system that provides forced induction to increase engine power. Issues with the boost system can result in reduced power, poor fuel economy, and potential turbocharger damage if not addressed.

Symptoms

  • Reduced engine power
  • Loss of boost pressure
  • Poor acceleration
  • Black or blue smoke from exhaust

Common Causes

  • Failed turbocharger boost pressure sensor
  • Faulty turbocharger wastegate
  • Faulty wastegate control solenoid
  • Clogged air filter restricting airflow

Diagnosis Steps

  1. 1Connect an OBD-II scanner and read all stored trouble codes and freeze frame data
  2. 2Inspect all boost hoses and intercooler piping for leaks or disconnections
  3. 3Test the boost pressure sensor with a multimeter or scan tool live data
  4. 4Check the wastegate and bypass valve for proper operation
  5. 5Inspect the turbocharger for shaft play, oil leaks, or damage

Estimated Repair Cost

$200$3,000

Cost varies by vehicle, location, and repair shop. Includes parts and labor.

Commonly Affected Vehicles

Ford EcoBoost modelsMini Cooper SKia StingerSubaru WRX

Related Codes

More Turbo Codes

Frequently Asked Questions

Minor turbo codes like sensor issues may allow careful driving, but significant boost or oil-related turbo codes should be addressed immediately to prevent turbocharger failure, which is very expensive to repair.