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No blow

Discussion in 'Diesel forum' started by Griffter, Jun 29, 2006.

  1. Griffter
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    Griffter New Member

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    [Jun 29, 2006]
    Hey all,

    on a '97 A4 1.9Tdi:

    On two or three occasions I have noticed the following (really since the weather was hot):

    1) Following a motorway run, come off the motorway then accelerate away from the exit roundabout, car very underpowered. Feels like there is no boost.

    2) If I pull over, switch off igntion and restart immediately, normal performance is restored.

    Any ideas? I don't have VAG-COM. All electricals and hoses are in good order.

    Many thanks, Ben.
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  3. carjacker0
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    carjacker0 New Member

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    [Jul 2, 2006]
    hi,
    it could be your Manifold Air Preassure sensor at fault. I had the same problem with a golf and after numerous visits to the stealers ,new turbo and new maf sensor the fault was traced to the MAP sensor.It 's only a fifty quid part and hell of alot cheaper than a turbo.good luck
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