EM TuningAH Fabrications
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  1. #1
    1st Gear

    Join Date
    Sep 2011
    Sunny Bangor. N.Wales.

    Code needed for egr shutoff on A4 2.5Tdi Quatt

    hi all as above, i have an audi "X"Reg A4 2.5 Tdi Quattro, basically i'm going to see a mate tomoz in manchester who has a full Vag-
    Com, but we're not sure how to shut the EGR off, any help and codes appriceated.
    Many Thanks
    2000, A4 2.5Tdi Quattro.
    Tinted, 3600WATTSLoud

  2. # ADS
    Join Date
  3. #2
    4th Gear

    Join Date
    Oct 2003
    up north...
    im pretty sure this isnt a vcds thing - its coded within the ecu programming and needs a remap to remove the function, along with a physical blanking plate - thats certainly the case with later PD cars that ive had
    TT-RS 410hp revo
    Fiat 500 1.3 tdi 120hp
    A3 8P 2.0tdi 240hp Autograph Cars
    RS4 B5 520hp MTM
    S3 8L 345hp MTM
    Volvo 850 T5 300hp BSR
    Fiat Punto GT 130hp
    Lancia Delta Turbo 185hp
    Lancia Beta Coupe 122hp
    Mini 74hp

  4. #3
    3rd Gear

    Join Date
    Jan 2011
    On the Ross-Tech site (TDI VCDS Info) there is a coding value to change the valve duty cycle, effectively turning off the EGR. The value given doesn't work for the 2.5 V6 TDi, but go for the highest value possible.
    The login code for the AFB engine is 26242, not the value in their example.

    See Engine Adaptions Login for my inputs
    1999 A4 B5 1.9 TDi FWD Saloon, Green SOLD
    2000 A4 B5 2.5 TDi Quattro Avant, Maroon, 'Panzer' Plated (currently sporting wrecked engine - and gearbox )
    2000 A4 B5 2.5 TDi Quattro Saloon, Blue, 'Panzer' Plated, Cruise Control retrofitted, OEM 6 Disc Changer retrofitted
    2006 A6 Allroad 3.0 TDi Blue, awaiting stuff to be done!



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