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Our automotive experts have put together the following information about the P2143 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2143 code.

OBD II Fault Code

  • OBD II P2143

    OBD-II Code Decreased engine performance is defined as a Exhaust Gas Recirculation Vent Control Circuit/Open

    The Exhaust Gas Recirculation Vent Control Valve is vacuum operated valve that controls the EGR Valve. It the engine control module (PCM) detects an incorrect signal from the Exhaust Gas Recirculation Vent Valve, the PCM will set code P2143.

    Decreased engine performance Symptoms

    • Decreased engine performance

    Common Problems That Trigger the P2143 Code

    • EGR recirculation vent control valve failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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