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  1. #1
    Neutral

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    Offline
    Join Date
    Mar 2010
    Location
    Braintree Essex
    Posts
    59

    Boost issues 1.9tdi

    Hi, i have an A4 tdi on a T reg (engine code AFN)

    Say for example im joining a bypass / motorway and building up my speed, foot to the floor through 3rd and 4th gear, by the time im halfway through 4th the boost just cuts off completly, totally flat, no turbo........however if i flick the ignition off then on it boosts fine again.
    Its seems to be when i load it up in the higher gears, 1st 2nd and 3rd are usually ok.

    Thanks in advance for any input

  2. # ADS
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  3. #2
    6th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Location
    London
    Posts
    3,076
    Turbo needs a clean tothe VNT mechanism...
    FOR SALE:
    -Golf mk 5/audi a3 1.6 FSI fuel pump, brand new genuine part boxed + seals
    -audi a3 (1998 to 2003) genuine clutch slave cylinder to fit 1.6 engines BRAND NEW
    -Rear bush press tool to fit new rear axle bushes on Golf Mk3/4, Audi a3/S3, Seat Leon/Toledo, Skoda Octavia mk 1/2 used once

  4. #3
    4th Gear

    Status
    Offline
    Join Date
    Feb 2012
    Location
    Pie eating land
    Posts
    871

    My Social Networking

    Follow ruffrida On Twitter Visit ruffrida's Youtube Channel
    Sticky turbo vaines or boost leak, but sounds more like sticky turbo, do a search on the 8L page or look on my started posts, been through all this with my 8L
    B6 1.9tdi Quattro Avant Sport,
    Full zenon bulb kit, Plug and Play chip @165bhp, EGR Delete pipe, Chrome Mirrors, Chrome side repeaters, wind deflectors, Front center arm rest, LED number plate bulbs (when they work), Rear tints, De-Badge Rear, 19" BBS LM's,De-Wiper
    Coming soon -35mm Springs, De-cat pipe.
    Wish List; FMIC, BV43 turbo, Bigger Remap, Fat Clutch, Stereo upgrade, Full Stainless with twin exit !
    Chuck it in & pin it out, nothing better than doing it in the dirt !!

  5. #4
    Neutral

    Status
    Offline
    Join Date
    Jun 2012
    Posts
    43
    Un-Sticking Your TDi VNT Turbo Vanes.....

    Just need to figure out the right Mr Muscle to buy!

 

 

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