P0473

2017-10-10

Description:

  • The fault code P0473 indicates that there is an issue with the exhaust pressure sensor circuit, specifically a high input signal received by the engine control module (ECM). This can potentially cause issues with the engine's overall performance.

Possible Symptoms:

  • Illuminated check engine light

  • Decreased fuel efficiency

  • Reduced engine power or acceleration

  • Rough idle or stalling

Possible Causes:

  • Faulty exhaust pressure sensor

  • Wiring or connection issues within the exhaust pressure sensor circuit

  • Failed engine control module (ECM)

Related Parts:

  • Exhaust Back Pressure Sensor: Exhaust Back Pressure sensor detects any kind of back pressure in the exhaust system. Back pressure is the pressure opposite to the exhaust flow resulting in a lower power output. This car's malfunctioning back pressure sensor may lead to higher emissions & lower performance

Possible Solutions:

  • Replace faulty exhaust pressure sensor

  • Check and repair any damaged wiring or connections within the circuit

  • Replace the engine control module (ECM) if necessary

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