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Thread: XB Throttle Body vacumn tube

  1. #1
    Member
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    XB Throttle Body vacumn tube

    Hey Guys, just going over all of my bits on my 07 Uly before I start reassembling. I have been chasing low speed rough running for a bit so eliminating possible causes as I go. I noticed a brass tube on the side of the throttle body which I believe was for Californian emission compliance. I was open and uncapped an no evidence of a cap or tube in or around the intake area so assume it's been off for a while. Has the absence of this cap been linked to rough low speed running????. Common sense would suggest yes but what's the experience out there. Cheers, Stu

  2. #2
    Member LouWambsganss's Avatar
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    Oct 2016
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    Cap it. Then do a TPS reset.

  3. #3
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    AmishLand, PA.
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    Has the absence of this cap been linked to rough low speed running????.

    yes stu. do what lou said. tight fitting rubber plug in correct ID available anywhere.
    there's a whole slew of remedies for 2007 XB12(your ulysses)stock configuration low speed stumbles/hesitations which most all stockers suffer from and are annoying as hell.

  4. #4
    Senior Member Cooter's Avatar
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    Quote Originally Posted by lunaticfringe View Post
    there's a whole slew of remedies for 2007 XB12

    ...Including adding a dedicated ground wire to the coil pack


    that ones for you Lunatic!



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