Forced Induction Custom FI Setup Questions

BOV open at Idle

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Old 07-30-2004, 10:11 PM
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Default BOV open at Idle

Ok I have a problem.. my car idles liek ---- and dies at idle because my BOV opens when I am idling... my car makes round 25 in HG at idle... I have a 1g DSM BOV and a MAF sensor.... The problem is the MAF sensor is on the turbo intake pipe and the BOV is right next to the throttle body.

Are there any BOV that will stay closed at idle but still open up when i come out of boost into idle and that will fit on my 1G DSM flange or am I going to just have to suck it up and recirculate and lose that bueatiful sound?
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Old 07-30-2004, 10:46 PM
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Default Re:BOV open at Idle

hit the top of the bov with a hammer, it will crush the top in and put more preshure on the spring.
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Old 07-31-2004, 12:52 AM
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Default Re:BOV open at Idle

There is a one-way valve (from home depot, lowes, etc.) that you can attach to the front with a small piece of rubber hose. This will help your idle problem. I'll try to find the link of the site that explains it.
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Old 07-31-2004, 01:31 AM
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Default Re:BOV open at Idle

Here is an example using a Bosch BOV. This fix applies to all BOVs that may be slightly open during idle.
http://www.geocities.com/kilruf/bov.html

However, by using a one-way check valve, you can prevent the BOV from sucking in air under low vacuum conditions. These valves can be found at Home Depot/Lowes/Hardware store near the sink or sump pump plumbing area.
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Old 07-31-2004, 06:11 PM
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Default Re:BOV open at Idle

VERY VERY VERY VERY Ghetto fix... but hell if this $3 ort so solution works then I owe ya big time!!
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Old 08-01-2004, 07:51 PM
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Default Re:BOV open at Idle

lol i didnt want to recirculate it was the onlyu problem.. just adds a lil more hot air to the cai for turbo...

anyhow this loews thing worked perfectr.. idles liike a champ now
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Old 08-01-2004, 09:17 PM
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Default Re:BOV open at Idle

Originally Posted by LoSx
lol i didnt want to recirculate it was the onlyu problem.. just adds a lil more hot air to the cai for turbo...

anyhow this loews thing worked perfectr.. idles liike a champ now
sweeeeeeeeeet. glad to hear it worked.
post pics. and the box/part number of what you got. thx
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Old 08-02-2004, 12:06 AM
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Default Re:BOV open at Idle

yeah, please post pics of your solution.
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Old 08-02-2004, 12:19 AM
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Default Re:BOV open at Idle

wouldn't it work to just put the bov before the maf?
Gotta figure that if it's opening before the maf,it isn't reading any more or less than is really going through it.
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