i hooked up my autometer boost gauge to the fpr vaccum line. when i started the car for a couple seconds the boost just kept climbing; it showed 15 psi when i shut the engine off. what could the problem be?

 

thats a autometer boost gauge for you...... its typical for them to be off

You also need to hook it up somewhere else and try it.... it is not reccomended for you to T it off the FPR....

 

ya try a vacume manifold off the brake booster
fast turbo had them on here a wile ago i think it was like $30

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedEG6 &raquo;</TD></TR><TR><TD CLASS="quote">thats a autometer boost gauge for you...... its typical for them to be off

You also need to hook it up somewhere else and try it.... it is not reccomended for you to T it off the FPR.... </TD></TR></TABLE>

it's not just a little off; it should be showing vaccum at idle, not 15 psi of boost. it was steadily rising the whole time the car was running. why shouldn't i run it off the fpr? i already have the bov and ebc running off the brake line.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95jeremie &raquo;</TD></TR><TR><TD CLASS="quote">ya try a vacume manifold off the brake booster
fast turbo had them on here a wile ago i think it was like $30

</TD></TR></TABLE>

a vaccum manifold is just a distribution point for vaccum, correct? it doesn't actually make any vaccum itself. i personally don't really see the point of them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicdxtyper &raquo;</TD></TR><TR><TD CLASS="quote">it's not just a little off; it should be showing vaccum at idle, not 15 psi of boost. it was steadily rising the whole time the car was running. why shouldn't i run it off the fpr? i already have the bov and ebc running off the brake line. </TD></TR></TABLE>

Ya think?

we know it isnt saposta show boost at idle...... And I can garenty you that your not making 15psi at idle

Just try it at another source and see if it still shows boost

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedEG6 &raquo;</TD></TR><TR><TD CLASS="quote">Just try it at another source and see if it still shows boost</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedEG6 &raquo;</TD></TR><TR><TD CLASS="quote">

Ya think?

we know it isnt saposta show boost at idle...... And I can garenty you that your not making 15psi at idle

Just try it at another source and see if it still shows boost</TD></TR></TABLE>

i've heard of autometer gauges being off a little bit, so i thought that's what you meant. yes, i realize it's not making any boost at idle. it's impossible for my setup to make 15 psi because of the wg spring. is it normal for the gauge to act wierd if run off the fpr? would running it off the brake line make a difference? i don't want to hack up the brake line any more than i have to.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicdxtyper &raquo;</TD></TR><TR><TD CLASS="quote">would running it off the brake line make a difference? i don't want to hack up the brake line any more than i have to.</TD></TR></TABLE>

I hope you mean brake booster line

Try running it off the MAP line just to see what it shows at idle

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicdxtyper &raquo;</TD></TR><TR><TD CLASS="quote">i don't want to hack up the brake line any more than i have to.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95jeremie &raquo;</TD></TR><TR><TD CLASS="quote">ya try a vacume manifold off the brake booster
fast turbo had them on here a wile ago i think it was like $30

</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicdxtyper &raquo;</TD></TR><TR><TD CLASS="quote">a vaccum manifold is just a distribution point for vaccum, correct? it doesn't actually make any vaccum itself. i personally don't really see the point of them.</TD></TR></TABLE>


well now you know the point of them

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95jeremie &raquo;</TD></TR><TR><TD CLASS="quote">


well now you know the point of them</TD></TR></TABLE>

no, i don't. plastic t-fittings are still cheaper. what i meant by that was that since the fpr line is already cut, i don't want to cut the brake line any more if i'm going to get the same result.

has anybody run their boost gauge off the fpr line? shouldn't it give the same reading as the brake line? my main reason for connecting to the fpr versus the brake line was because the gauge came with a small t-fitting that fit perfectly into the fpr line.

 

damn dude.... stop being so cheap

like I said before.... find another source hook the gauge up and see if it still showing the same thing

Vac manifolds are for people running intake manifolds that dont have alot of sources for vac that way you dont have to keep T'ing things off fpr's, MAP's and so on

 

ok so for you to know the problem you need to rule a few things out. to do this you need to change a few things one at a time. this first thing that you should try is... try a different vac source. yes it's a known fact that autometer is off... so go buy another one. however if you waste the money on another one just to find out that you vac source is the problem i don't want to see a post about you bitching. now you have all the info you need... I'm done.

 

I've never heard of this type of problem before with a boost gauge. It's mechanical right??

I've always teed off the fpr without any problems.

Weird man.

If it were my car I would just try a different source, and if that didn't work I might test the gauge. They are pretty easy to test.

That's provided it's a mechanical gauge, if it's electric, there could be other problems.

 

lol you sure its not reading 15" of vacuum?

 

fast turbos got there vacuum mani on ebay....if ur looking for one.
but it now for 30 bucks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by y7turbo &raquo;</TD></TR><TR><TD CLASS="quote">lol you sure its not reading 15" of vacuum? </TD></TR></TABLE>

lol

Wouldn't that be funny.

 

It should read ~21in/Hg at idle; at the very worst 15in/Hg if you have a very bad vac leak and clogged injectors or something. My guess is the gauge is bad - return it and get another. The only perfectly acurate gauge you'll find is one that interpolates MAP voltage directly to pressure, IE an electric gauge.

As for vac manifolds, they are stronger than plastic fittings, are MUCH more convenient, and most importantly - all boost-related components work off the exact same air. By that I mean the pressure the BOV sees is *exactly* the same as the WG, same for the boost gauge, etc. Different areas on the manifold can be affected by flow past the port.

For a HMT setup, it doesn't really matter. Same thing goes for an FMU and V-AFC, they are fine for tuning a HMT setup...since it just has to work, not work great.

 

if its there electronic gauge, i had the same problem. i called autometer and they told me i had to make sure i had the power connected to a constant 12v circuit, not one that turns off with the start of the motor. as soon as i rewired it, it worked like a champ. if its a mechanical gauge, i don’t know what is going on, ive never had experience with one

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by y7turbo &raquo;</TD></TR><TR><TD CLASS="quote">lol you sure its not reading 15" of vacuum? </TD></TR></TABLE>

unless psi is reffering to vaccum.

i'm gonna try splicing it into a vaccum line for the ebc or bov and see what happens.

 

try diff vac source. if it still reads boost at idle buy a new gauge. simple.

 

odd, my defi d boost gauge is about 2-3psi off, its off my stock fpr line right now, i tried it off my bov line where dyno guys tapped it (showed fine for them) and my gauge is still wacked.. o well.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicdxtyper &raquo;</TD></TR><TR><TD CLASS="quote">i hooked up my autometer boost gauge to the fpr vaccum line. when i started the car for a couple seconds the boost just kept climbing; it showed 15 psi when i shut the engine off. what could the problem be? </TD></TR></TABLE>

My Autometer boost guage always read different depending on how long I drove the car for. Somedays it would be 18in vac and sometimes it would be 21in vac at idle. And everytime I turned my car off it would sit at 1psi.