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Thread: Clean out your hole

  1. 9th November 2025, 02:58 PM #41
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    RoundaWhile
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    Quote Originally Posted by PerthDisco View Post
    The butterfly is naturally in the open position. It closes to suck from the egr circuit when directed.

    The butterfly disc is removed after blanking / deleting the egrs
    Reviving this thread out of curiousity.

    What would happen if you removed the butterfly disc without doing anything to the EGRs/mapping?
    Surely it would massively reduce the amount of gunk coming from the EGRs????
    07 TDV6 2.7 D3 SE
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  2. 9th November 2025, 03:12 PM #42
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    Quote Originally Posted by RoundaWhile View Post
    Reviving this thread out of curiousity.

    What would happen if you removed the butterfly disc without doing anything to the EGRs/mapping?
    Surely it would massively reduce the amount of gunk coming from the EGRs????
    No it wouldn't, it will still flow into the engine.
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  3. 9th November 2025, 04:04 PM #43
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    Quote Originally Posted by loanrangie View Post
    No it wouldn't, it will still flow into the engine.
    Yes I agree that it would still flow but if the butterfly is not closing it must be at a reduced rate?
    07 TDV6 2.7 D3 SE
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