Friday 28 June 2019

P1021

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  • P1021

    P1021


    Diagnosis information - DME V6 DFI Fuel high-pressure quantity

    NOTE: Diagnosis detects a deviation between required and actual values in fuel high-pressure quantity control.


    Diagnostic conditions

  • Battery positive voltage > 9 V
  • Engine start recognized > 5 sec.
    - Engine temperature -10 °C ...+100 °C (50 °F ... 212 °F)
  • Drive with different load and speed ranges

    Possible fault causes

  • Quantity control valve faulty (in fuel high-pressure pump)