Gauge Problem
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This is a discussion on Gauge Problem within the Interior Mods forums, part of the Tech & Modifying & General Repairs category; ok ..installed the SPO boost gauge ..got the electrical to work. Lights up fine. Tapped into the BOV line.. now..when ...

  1. #1
    Registered User armowrx's Avatar
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    Gauge Problem

    ok ..installed the SPO boost gauge ..got the electrical to work. Lights up fine. Tapped into the BOV line.. now..when i took it for a test run, the needle was at 20 vacuum, then at WOT it would read little over 10lbs boost, under 14 though. so then I ziptied all the lines however I think I might have bent the T a little.. not alot.. but you can see a little flex in the plastic if you know what I mean.

    So 2nd test drive.. when at idle.. the gauge reads like 10 or so Vacuum .. then when I take it for a drive at WOT it maybe gets to zero.. i know thats not right. Shouldn't it idle at zero?? help me out guys. What readings should I be looking for at idle and at WOT??

    I followed instructions posted on this site for the install.

    Thanks.
    2002 Silver WRX
    Cobb AP Stage 2 Protuned, Perrin Upipe, Bosal Downpipe., Eibach Springs/KYB AGXs, Turbo XS Magnaflow catback, Autometer Boost Gauge, 18x8 Rota Tarmac 3's on 235/40/18 Falken Azenis 451's

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  3. #2
    Registered User spacemanspiff's Avatar
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    Stock max boost is 13.5 and at idle you do have negative pressure (vacuum). I don't have this gauge so I can't be of more help.
    A lot of power is good, more is better, and too much is perfect. I mean, if less is more, think how much more more is...

  4. #3
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    It sounds like maybe one of your zip ties is pinching the vacuum line and therefore your pressure is read incorrectly. Since you said that during your first test drive(pre-zip tie) it worked approximately correctly, and on the second drive(post-zip tie) it pretty much did not work right at all.

    I would go back and double check the entire length of tubing to make sure it is not kinked or pinched anywhere, especially around the zip ties.

    -the_bear

  5. #4
    Registered User armowrx's Avatar
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    turned out the line going into the gauge was kinked.. all fixed ..working great.. 15.5psi through 3rd-5th gear.. thanks.
    2002 Silver WRX
    Cobb AP Stage 2 Protuned, Perrin Upipe, Bosal Downpipe., Eibach Springs/KYB AGXs, Turbo XS Magnaflow catback, Autometer Boost Gauge, 18x8 Rota Tarmac 3's on 235/40/18 Falken Azenis 451's

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