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  1. vw754

    vw754 vorsprung Durch Technik

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    egr has a "shuddle valve" connected to it (black plastic valve on side) this controls the flap inside egr,if this flap does not close or open as it should would the car be using more fuel or be causing starting problems......A4 TDI 2001 (b6) AWX ENGINE.
     

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