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W211 low fuel pressure under hard acceleration star code 22e7

Discussion in 'Introduce yourself' started by mshah70, Jun 8, 2018.

  1. mshah70

    mshah70 Senior Member

    Likes Received:
    Jun 8, 2018
    Your Mercedes:
    Mercedes w211 2007 E220 Cdi
    Owner of merc w211 e220 Cdi 2007

    I am having low fuel pressure issues.
    Star diagnostic code 22e7
    Check high pressure control ‘rail pressure too low’

    When i open up the throttle (hard acceleration) going up a hill or on motorway, the engine light comes on and car goes into limp mode.

    I used Star to check high pressure control, Quantity control valve, pressure regulator all sensors seem To be in working order.

    I tested the low pressure circuit, fuel pump seems to be in working order.

    Please i need some help.

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