P0046

2017-10-10

Description:

  • The fault code P0046 indicates that there is an issue with the circuit that controls the boost pressure of the turbocharger or supercharger. This may cause the engine to run poorly or not start at all.

Possible Symptoms:

  • Lack of power or acceleration

  • Illuminated check engine light

  • Poor fuel economy

  • Engine runs rough or stalls

  • Turbo lag or delayed acceleration

Possible Causes:

  • Faulty boost pressure sensor

  • Failed turbocharger wastegate

  • Faulty turbocharger bypass valve

  • Loose or corroded electrical connections

  • Failed engine control module (ECM)

Related Parts:

  • Turbocharger/Supercharger: Turbocharger compresses in more air into the engine, hence producing more power output. Problem leads to power loss

Possible Solutions:

  • Replace the boost pressure sensor

  • Replace the turbocharger wastegate

  • Replace the turbocharger bypass valve

  • Check and repair any damaged wiring or connections

  • Tighten or clean any loose or corroded electrical connections

  • Replace the engine control module (ECM) if necessary

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