P004D Atención pronto

Turbocharger/Supercharger Boost Control B Circuit High

Powertrain

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Descripción

This code indicates that the car's computer is detecting an electrical signal that is too high from the boost control solenoid for the turbocharger or supercharger. This solenoid is responsible for managing the amount of boost pressure the engine receives.

Causas comunes

  • Faulty boost control solenoid
  • Wiring issue to the boost control solenoid
  • Problem with the boost control solenoid's electrical connector
  • High voltage in the electrical system
  • Issue with the car's computer (PCM/ECM)

Síntomas

  • Reduced engine power
  • Check Engine Light is on
  • Poor acceleration
  • Engine may run rough

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