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Thread: Why EGR problems are happening post-'fix'?

  1. #1
    Senior Member
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    Why EGR problems are happening post-'fix'?

    I reckon this guy's nailed it:



    Different levels of soot build-up causing very different behaviour when more flow is demanded than before.

    Anyone disagree?
    My car: 2003 Polo 1.4 BBY, Petrol
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  2. #2
    Senior Member Gazwould's Avatar
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    Nope .

    And that's why a 1970's out of date vacuum operated design belongs in the bin .

    There are more modern better aftertreatments for NOx .

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