Badger5Monster Motorsport
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  1. #1
    Reverse Gear

    Join Date
    May 2008

    Disconnected egr and engine light came on!

    Hi ive recently posted a thread in the 'b6' section relating to a few problems i was having with my 2004 a4 tdi. Im kind of new to this forum and still working my way around

    I disconnected and plugged the egr valve today, drove about 15 miles down the M5 and all of a sudden the engine management light came on.
    Whilst the egr was disconnected it stopped smoking and mis-firing which temporarily sorted the problem but now the engine light is on. Have'nt had a chance to plug in for fault codes yet but can anyone shed some light as to why this has happened? thank you in advance

  2. # ADS
    Join Date
  3. #2
    Type Approval Engineer,

    Join Date
    Sep 2008
    Chilwell, Notts
    take the egr valve out, its 3 bolts to detach from the inlet manifold. get some brake cleaner and scrape all the soot crud out, once sparkly clean, rebuild, and then take the intercooler out (bumper off for this) and clean that out, brake cleaner filled inside, swished around to clean out the oil, then rebuld.

    rebuild and enjoy

    83 GTi - road legal track weapon - now running 2.0l 16v super charged, = FAST!
    Daily hack: Audi A4 Avant S Line 2.0TDI Motech map to 175bhp, Milltek twin exit system, 1/2 leather, DIS, Fan washer jets, B8 rear aero wiper, FK headlight,



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