P0257 Urgente

Injection Pump Fuel Metering Control 'B' Range/Performance (Cam/Rotor/Injector)

Powertrain

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Descripción

This code indicates that the fuel injection pump's fuel metering control system ('B' circuit) is not operating within its expected range or performance parameters. The computer is detecting readings that are outside of normal for this specific fuel control circuit.

Causas comunes

  • Faulty injection pump metering control valve (circuit B)
  • Low fuel pressure
  • Clogged fuel filter
  • Internal injection pump issue
  • Problem with the engine control module (ECM)

Síntomas

  • Check Engine light is on
  • Engine misfires
  • Rough idling
  • Difficulty starting
  • Reduced engine power

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