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P228D Powertrain

Fuel Pressure Regulator A Exceeded Control Limits - Pressure Too High

Fuel Pressure Regulator A Exceeded Control Limits - Pressure Too High: the control module has detected this fault condition. This controls fuel-rail pressure.

Affected components

  • Fuel pressure regulator
  • High pressure fuel pump

Common causes

  • High likelihood: Return path blocked or pump runaway

Possible symptoms

  • Check engine light on
  • Hard start, no start, or stalling under load
  • Power loss especially at high load or rpm
  • Possible long cranking time

Diagnostic notes

  • The malfunction indicator lamp may illuminate
  • This code can affect emissions

Related codes

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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