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Thread: Fault p0400 (57) (EGR Valve Voltage Low) on Z22YH

  1. #1
    Regular Member VeCeZ22YH's Avatar
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    Vehicle InfoStats

    Vehicle : Vectra C


    Engine : petrol 2.2 i 155 PS

    Year : 2004

    Default Fault p0400 (57) (EGR Valve Voltage Low) on Z22YH

    hi. diagostic say that I have low voltage on EGR (z22yh) . I red a lot about cleaning or blanking EGR but I dont think this would solve my problem. can somebody give me advice. thanks.
    greet from Slovakia

  2. #2
    Regular Member mattv6diesel's Avatar
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    Vehicle : Bmw 330d

    Trim : Msport

    Engine : 3.0d

    Year : 2008

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    New vauxhall fix is a egr blanking plate and a ecu software update to delete it. On the z22se and z22yh

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    Regular Member borderlinechris's Avatar
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    i had the p0400(egr malfunction) fault code on mine 1.9cdti sri. i stripped and cleaned it using the how2 on here as a guide, new gaskets, refitted and its been fine ever since.

  4. #4
    Regular Member VeCeZ22YH's Avatar
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    Vehicle : Vectra C


    Engine : petrol 2.2 i 155 PS

    Year : 2004

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    thanks. would blanking plate do absolute disfunction of egr? does this "ecu software update to delete it" means dissabling egr in the ecu?

  5. #5
    Regular Member VeCeZ22YH's Avatar
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    Vehicle : Vectra C


    Engine : petrol 2.2 i 155 PS

    Year : 2004

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    for each 10 engine starts one is bad and engine stops after accelerate.

    I have active fault : "P0621 - Generator Lamp "L" Control Circuit Malfunction
    (04) - Present" too .
    could it be the reason why voltage on egr is low?

    next fault is : "P1112 - Swirl Flap Stuck (61) - Not present "

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