fualt codes

  1. M

    Need help with fuel related Codes

    Hello, i have w212 om651 2009 sedan, but sometimes when its cold the rpm fluctuates by 50/100 up in idle other than that it runs good acceleretes good with kickdown.But after i replaced the quantity control valve on hp fuel pump Engine light has come on dash after reving it to 2k rpm and power...


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Specialist in parts for W140 and R129 Mercedes-Benz models.
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