P0231

2017-10-10

Description:

  • The fault code P0231 indicates a problem with the fuel pump secondary circuit, which could lead to low fuel pressure and poor engine performance.

Possible Symptoms:

  • Engine starts but stalls shortly after

  • Engine performance is poor

  • Reduced fuel efficiency

  • Illuminated check engine light

Possible Causes:

  • A faulty fuel pump relay

  • A broken or shorted wire in the fuel pump circuit

  • A damaged fuel pump

  • A failed fuel pressure regulator

  • A clogged fuel filter

Related Parts:

  • Fuel Pump: The fuel pump takes fuel from the fuel tank and delivers it to the engine. Problems in this car's fuel pump may lead to engine misfire, poor fuel economy & poor acceleration

Possible Solutions:

  • Replace the fuel pump relay

  • Check and repair any damaged wiring in the fuel pump circuit

  • Replace the fuel pump if it is damaged or not working

  • Replace the fuel pressure regulator if failed

  • Replace the fuel filter if it is clogged

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