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Thread: M73 V12: Delete the vacuum system for the injectors

  1. #1
    Join Date
    Aug 2011
    Location
    Norway
    Posts
    27
    My Cars
    95 E38 740i, 00 750i

    M73 V12: Delete the vacuum system for the injectors

    Well, my original injectors have started disintegrating (plastic fantastic).

    These injectors are unique, with a vacuum nipple. Unfortunately, these injectors are also expensive, and times 12 it adds up.

    Has anyone replaced these injectors with regular style injectors, and capped the vacuum system? Is the vacuum part of the injector necessary for regulating the flow based on vacuum?
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    95 740i, cosmosschwarz
    00 750i Individual, carbon black

  2. #2
    Join Date
    Feb 2013
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    The Motor City
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    1997 750 IL
    I have the pre facelift 750 but as far as I heard those are not vac lines. Those are positive pressure air addition lines to add air to the fuel spray. I doubt the DME cares if they are the old style but the adaptations would probably care since the original injectors had more air in the fuel mix which would probably mean the car would run poorly until adaptations caught up.
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    Schl.Nr. P5EG

  3. #3
    Join Date
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    Springfield, VA
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    2003 540iA
    I think this is what you are looking for
    https://www.bimmerforums.com/forum/s...-(-98-01-M73N)


    2001 750iL DD74441
    Stock

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  4. #4
    Join Date
    Aug 2011
    Location
    Norway
    Posts
    27
    My Cars
    95 E38 740i, 00 750i
    Quote Originally Posted by TheAngryBear View Post
    I think this is what you are looking for
    https://www.bimmerforums.com/forum/s...-(-98-01-M73N)
    Awesome! Excactly what I was looking for. Thanks alot!
    95 740i, cosmosschwarz
    00 750i Individual, carbon black

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