P0471

2017-10-10

Description:

  • The fault code P0471 suggests that there is a problem with the range or performance of the exhaust pressure sensor. This may result in poor engine performance or even engine damage.

Possible Symptoms:

  • Reduction in engine performance

  • Engine misfires or stalls

  • Decreased fuel efficiency

  • Illuminated check engine light

Possible Causes:

  • Defective exhaust pressure sensor

  • Clogged or damaged exhaust system

  • Wiring or connection issues in the 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 the exhaust pressure sensor

  • Check and repair any issues with the exhaust system

  • Inspect and repair any damaged wiring or connections in the circuit

  • Replace the engine control module (ECM) if necessary

Search