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Thread: Overboosting?

  1. #1
    Sammo's Avatar
    Reverse Gear

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    Overboosting?

    Evening All

    My 97 A4 TDI 110 has a little problem. When I am accelerating the boost (eventually) kicks in but when it hits around 3500rpm in 3rd gear it suddenly seems like it has hit the rev limiter and then wont boost again until I switch it off and on again. I am assuming its overboosting and going into limp home mode. Any ideas what could be causing this?

    Cheers

    Sammo
    Live In Surrey? Own A VW/Audi/Seat/Skoda? Join Surrey Dubs - www.surreydubs.co.uk

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  3. #2
    3rd Gear

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    Jan 2011
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    Your turbo vanes are stuck.
    There's a few threads on that problem, the best one is here
    Un-Sticking Your TDi VNT Turbo Vanes.....
    or on the B6 forum
    WOW !!!!! MR MUSCLE TURBO CLEANNING
    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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