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Thread: J538 Fuel Pump Control Module, cable FB? twin Walbro 450?

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    Registered User RS8's Avatar
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    Jul 2012
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    J538 Fuel Pump Control Module, cable FB? twin Walbro 450?

    Hi.
    I'm planing to use the RS6 J538 Fuel Pump Control Module in my S8-97 to control two Walbo 450L fuelpumps.
    I will control J538 with my standalone ECU = MaxxECu Pro

    First question:
    Is J538 a good functioning unit? or is it often a problem with these?

    Second question:
    What does the abbreviation FB mean on the cable that is in the red circle in my picture?
    Click image for larger version. 

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    Last edited by RS8; February 24th, 2019 at 12:49.
    RS6/S8 engine, 6spd tdi 01E, EFR7163 turbos, custom built exhaust manifolds, S8 camshafts, MaxxEcu Pro, wagners ic's, bigger fuel rails, AN8 fuel line, 2xwalbro 450lph fuel pump
    and EV14 1500cc fuel injectors in my S8/RS8

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