Boost Gauge Problem
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This is a discussion on Boost Gauge Problem within the Cockpit and Cabin forums, part of the Tutorials & DIY category; OK, I just installed my mechanical boost gauge, and there's a couple of things wrong. First, when I'm at idle, ...

  1. #1
    Registered User Blue2004WRX's Avatar
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    Exclamation Boost Gauge Problem

    OK, I just installed my mechanical boost gauge, and there's a couple of things wrong. First, when I'm at idle, the gauge sits at 0. Actually, around .5. When I start boosting, it goes up very choppy. Then I hit 10 PSI and the reading DROPS to 0. Anyone have any ideas???
    --2004 WRB WRX--
    Still way too stock.

    Originally posted by MidnightFLAT4
    I like A/C for the sole reason that it makes the idle sound meaner.

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    Registered User Root's Avatar
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    What kind of gauge is it? does it show vaccum? Make and model would help. Also how did you route the tubing and where did you tap for boost?

    It does sound like an Autometer gauge though.

    Pics of the boost tap connection would be helpful also.

    Justin
    Good judgement comes from experience,
    and experience comes from bad judgement.

  4. #3
    Registered User Blue2004WRX's Avatar
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    Originally posted by Root
    What kind of gauge is it? does it show vaccum? Make and model would help. Also how did you route the tubing and where did you tap for boost?

    It does sound like an Autometer gauge though.

    Pics of the boost tap connection would be helpful also.

    Justin
    Autometer is right. I tapped it with a t-tap and a hose. The connection is on the left side of the intercooler, but more towards the front. Am I pinching the line, or does it sound like a leek?
    --2004 WRB WRX--
    Still way too stock.

    Originally posted by MidnightFLAT4
    I like A/C for the sole reason that it makes the idle sound meaner.

  5. #4
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    a guy I know tapped on the left side of the intercooler andhis didn't work. He had to tap on the right side (the stock BoV)
    04 WRX Black no options!
    Helix up/downpipe, HKS catback & Bov, autometer gauges and MRT shortshifter, Bronze Rota SDRs, UTEC, tein SS coilovers, HKS type1 turbo timer, 6000K HIDs, JDM spec C front/rear lips, 20% tint
    to be installed: Mines Spoiler

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    Registered User Shard's Avatar
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    I tapped the BOV with my autometer, no problems whatsoever.

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    Registered User Blue2004WRX's Avatar
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    Maybe I'll do that... I have an aftermarket BOV installed now, but its the same shape. (GFB). Which specific hose should I tap, one of the three black ones on the intercooler??
    --2004 WRB WRX--
    Still way too stock.

    Originally posted by MidnightFLAT4
    I like A/C for the sole reason that it makes the idle sound meaner.

  8. #7
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    I would check all of your lines. I still am not reading the correct pressure with stock boost with my autometer boost gauge. I am going to work on it pretty soon to see if I can figure something out and then try another boost guage. I will let you know what happens.

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    Originally posted by Shard
    I tapped the BOV with my autometer, no problems whatsoever.
    me too.

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    Registered User Blue2004WRX's Avatar
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    What's the easiest, most convenient line to tap? I realized I tapped my wastegate (actually, not me, a friend who was helping). What's the best vacuum hose to tap?
    --2004 WRB WRX--
    Still way too stock.

    Originally posted by MidnightFLAT4
    I like A/C for the sole reason that it makes the idle sound meaner.

  11. #10
    Registered User Shard's Avatar
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    The BOV line.

  12. #11
    Registered User Blue2004WRX's Avatar
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    Originally posted by Shard
    The BOV line.
    2 Questions about that:

    1) Did you unbolt your intercooler to get to the tube easier, and
    2) What size tubing is that??

    Thanks a lot

    -Blue
    --2004 WRB WRX--
    Still way too stock.

    Originally posted by MidnightFLAT4
    I like A/C for the sole reason that it makes the idle sound meaner.

  13. #12
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    Originally posted by Blue2004WRX
    2 Questions about that:

    1) Did you unbolt your intercooler to get to the tube easier, and
    WHYYY? would you do that? Just disconnect the dang thing!

    2) What size tubing is that??
    no clue


    Thanks a lot

    -Blue
    Look at this
    Last edited by scoolbuzz; 08-06-2003 at 07:13 PM.

  14. #13
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    I checked my stuff out today:

    1. Made sure lines to turbo inlet, solenoid, and wastegate were tight.

    2. Made sure that the vacumm line itself was tightly connected (with a zip tie: you may want to use some type of glue) to the rubber vaccum line connecting it to the T for the FPR line and the BOV.

    3. Reset ECU using shiv's technique (do a search for resetting ECU)

    4. BADA BING 13.5 PSI!

  15. #14
    Registered User Blue2004WRX's Avatar
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    Originally posted by scoolbuzz
    I checked my stuff out today:

    1. Made sure lines to turbo inlet, solenoid, and wastegate were tight.

    2. Made sure that the vacumm line itself was tightly connected (with a zip tie: you may want to use some type of glue) to the rubber vaccum line connecting it to the T for the FPR line and the BOV.

    3. Reset ECU using shiv's technique (do a search for resetting ECU)

    4. BADA BING 13.5 PSI!
    Hmm, sounds familiar

    Anyone know what size T-tap to use for the vacuum tube??
    --2004 WRB WRX--
    Still way too stock.

    Originally posted by MidnightFLAT4
    I like A/C for the sole reason that it makes the idle sound meaner.

  16. #15
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    Originally posted by Blue2004WRX
    Hmm, sounds familiar

    Anyone know what size T-tap to use for the vacuum tube??
    Vacu-Tite! Part number: 47332 1/4" x 1/8" x 1/4" @ Autozone

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