17547/P1139/004409

From Ross-Tech Wiki

17547/P1139/004409 - Fuel Trim: Bank 2 (Add): System too Rich

Possible Symptoms

  • Malfunction Indicator Light (MIL) active

Possible Causes

  • Mass Air Flow (MAF) Sensor faulty
  • Fuel Pressure Regulator faulty
  • Fuel Injector(s) faulty
  • Oxygen Sensor Control faulty
    • Oxygen Sensor(s) faulty
  • Evaporative Emission (EVAP) System faulty

Possible Solutions

  • Check Mass Air Flow (MAF) Sensor
  • Check Fuel Pressure Regulator
  • Check Fuel Injector(s)
  • Check Oxygen Sensor Control
    • Check Oxygen Sensor(s)
  • Check Evaporative Emission (EVAP) System

Special Notes