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Tip in isses w/ 3bar cause by placement of vac source

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Old Nov 30, 2004 | 08:54 AM
  #1  
Burke's Avatar
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Default Tip in isses w/ 3bar cause by placement of vac source

I recently put a 3bar in my car to run w/ uberdata. i know uber does have some issues with the 3bar, and i am try8ing to figure out if soem of the issues i am having have to do with the program itself.
basically its the tip in, more than slight throttle and it hiccups for a second.
i currently have the 3bar vac source tee'd off the brake booster where as the stock map sensor is directly off the tb. i am wondering if long vac source could be atrtributing to a delay in the signal to the map sensor. i have not done any analytical analysis on it yet, this is my first idea and wanted to see if anyone has had the same issues and resolved it by a better vacuum source placement
Thanks!!
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Old Nov 30, 2004 | 01:23 PM
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Default Re: Tip in isses w/ 3bar cause by placement of vac source (Burke)

bump
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Old Nov 30, 2004 | 04:09 PM
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Default Re: Tip in isses w/ 3bar cause by placement of vac source (Burke)

try to put the map sensor close to the vacumm source ,try to get another location than the booster
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Old Nov 30, 2004 | 04:39 PM
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Default Re: Tip in isses w/ 3bar cause by placement of vac source (Burke)

why not run it off the stock location just to be sure its not causing the problem?
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Old Nov 30, 2004 | 04:53 PM
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Default Re: Tip in isses w/ 3bar cause by placement of vac source (Burke)

shouldn't matter
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Old Nov 30, 2004 | 05:21 PM
  #6  
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Default Re: Tip in isses w/ 3bar cause by placement of vac source (86si)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 86si &raquo;</TD></TR><TR><TD CLASS="quote">shouldn't matter</TD></TR></TABLE>
shouldnt no, but wouldnt you like to be sure?

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Old Nov 30, 2004 | 06:35 PM
  #7  
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Default Re: Tip in isses w/ 3bar cause by placement of vac source (Kamin)

I would use as small and as short a hose as possible, to decrease the amount of air that has to be moved to affect the sensor. Also, I always run the map sensor on it's own vacuum line from the manifold, never shared with anything else. Especially something like the brake booster, which can really mess with the vacuum signal.
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