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  #1  
Old 01-19-2012, 03:07 PM
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Audi TDI, VW TDI forum newbie
 
Join Date: Oct 2011
Car: jetta 2006.5 tdi special edition
Mods: 19" rims, upsolute tune, bora cam kit, vcds tweeks
Location: peterborough, on
Posts: 43
Default turbo gone crazy, how to fix FYI

i have a boost gauge in my car, lucky me it helped solve my problem. i noticed my boost all over the place, none when i needed it, lots when i dont. NO power, jerky throttle. anyway, i suspected it had something to do with the turbo, or fuel. anyway on the rear drivers side of your valve cover theres a little group of vacuum lines, one popped off, whew!! what a releief. hope this helps someoe in the future.
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  #2  
Old 01-19-2012, 08:05 PM
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Join Date: Jul 2010
Car: 2000 Mk4 Golf Estate 1.9tdi 110ish bhp
Location: Scotland UK
Posts: 3,177
Default

Yeh you need them connected for sure, you have a vnt type turbo and it uses the vacuum to alter these vanes in the turbo to increase boost so no vacuum = no boost. There's various info around and you can also youtube the vnt to see how it all works.
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