DS EFI video
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Thread: DS EFI video

  1. #1
    Fellow Frogger! marc61's Avatar
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    Default DS EFI video

    Another very good video from DS TT on YouTube, only wish it had English subtitles

    https://youtu.be/oO3HCheUlpo

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    At about 23 minutes, he refers to an extra loop and the item that’s been plumbed into the air circuit (mounted at the front of the engine above the exhaust manifold). Would anyone know why that’s been done and what its doing?
    Cheers, Marc.

    1987 CX GTi T2 Maikonics
    1972 SM 2.7 carb
    1972 DS21 EFI

  2. #2
    Administrator GreenBlood's Avatar
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    Quote Originally Posted by marc61 View Post
    Another very good video from DS TT on YouTube, only wish it had English subtitles
    You can select English subtitles, CC to switch on captions and settings to select language. The translation is quite poor but you do get more of an idea as to what is being explained.

    This is a pretty informative site for 21/23 injection - again you'll need your browser to translate if you don't speak French. . .
    Les DS 21 et 23 injection électronique

    Cheers
    Chris
    74 D(very Special) >>Rejuvenation Thread<<
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    Fellow Frogger! marc61's Avatar
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    Thanks Chris. It seems the thing I was querying is a deceleration valve fitted to BVM cars after Sept 1972 in order to reduce emissions. Learn something everyday!
    GreenBlood likes this.
    Cheers, Marc.

    1987 CX GTi T2 Maikonics
    1972 SM 2.7 carb
    1972 DS21 EFI

  4. #4
    1000+ Posts Ken W's Avatar
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    The deceleration valve was fitted to the SM as well. It limits the negative pressure in the inlet manifold so saves the vacuum sensor diaphram from high vacuum levels as well.

    Cheers, Ken

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