P0448

2017-10-10

Description:

  • “The fault code P0448 indicates that there is a short circuit in the vent control circuit of the evaporative emission control system. This may cause the vehicle to fail emissions tests or illuminate the check engine light.”

Possible Symptoms:

  • Illuminated check engine light

  • Failed emissions test

  • Fuel odor from the vehicle

  • Difficulty filling the fuel tank

Possible Causes:

  • Faulty vent control solenoid or valve

  • Short circuit in the wiring or connections of the vent control circuit

  • Corrosion or damage in the vent control circuit

  • Failed engine control module (ECM)

Related Parts:

  • Evaporative Emission (EVAP) System: The EVAP system prevents petrol vapors from escaping into the atmosphere from the fuel tank and fuel system. Problems in this car's flow valve will lead to fuel loss

Possible Solutions:

  • Replace the vent control solenoid or valve

  • Check and repair any damaged wiring or connections in the vent control circuit

  • Clean any corrosion or damage in the vent control circuit

  • Replace the engine control module (ECM) if necessary

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