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Old 01-22-2008, 09:59 PM   #1
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Default installed bov, and car stalls when off throttle

i have this small problem, i installed my bov to solve my surge problem
and now ive encountered another problem

car idles fine, and drives pretty good under boost

when i drive,and say i boost it,
and then let off the throttle and roll in neutral,
the car stalls

im assuming the vented air, since its going to atmosphere, is being compensated by the ecu with fuel? causing the car to stall? this is totally a guess

any one else have this problem, and how do i fix it?
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Old 01-22-2008, 10:03 PM   #2
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you installed that DSM BOV? did you run a vacuum line from your intake manifold to the bov?
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Old 01-22-2008, 10:04 PM   #3
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You do have a bandaid setup right?
Unless you're running a MAP based EMS like megasquirt you will need to recirculate you BOV so that it vents after the AFM. It's most likely leaking under vacuum causing this problem. Recirc will fix it. Unless you want a new EMS
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Old 01-22-2008, 10:04 PM   #4
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you cant dump to atmosphere on a metered intake and expect to continue to idle properly
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Old 01-22-2008, 10:11 PM   #5
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supersaiyan93 - yes sir i did

cjernigan - yea, bandaids :( but the car idles fine, i can drive it around under boost no prob, as soon as i boost and blow off and throw in neutral, it stalls, but if im shifting, its fine

only if i throw in neutral does it die,, but if i ween it slowly ,, say blow off, and then tap the gas, it idles down just fine

Braineack - tell me somthing i dont know :(



as for the ems,, what is it, how much is it, what does it do, is it like emb?
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Old 01-22-2008, 10:16 PM   #6
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EMS=engine management system
I was referring to MS, I don't recommend anything else.
Recirc your BOV, do a search on it if you need a picture, it will fix your problem.
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Old 01-22-2008, 10:20 PM   #7
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thanx alot, searching it up as i type this
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Old 01-22-2008, 10:42 PM   #8
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Old 01-22-2008, 10:54 PM   #9
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quick question, i wont be able to do this for a few days,
does venting to atmosphere hurt the car in anyway?
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Old 01-22-2008, 11:09 PM   #10
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Only damage it causes is your pride when you take people for rides and it runs like crap or stalls at a light. Having a BOV is better than having no BOV while you pray surge doesn't kill your turbo.
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Old 01-22-2008, 11:23 PM   #11
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okie, pride wont hurt,
at the end of the day,
they r the ones going for a ride,
in my sweet *** boosted miata
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Old 01-23-2008, 02:15 AM   #12
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you can try adjusting the dashpot to let your idle gradually come down. but it's definitely a bandaid approach. You should fix it proper.
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Old 01-23-2008, 02:44 AM   #13
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I wouldn't mess with the dashpot, though I bet adjusting your base idle higher to around 1000 rpms would help with it. This is kind of the reason I installed a recirculated bosch bov. Other reason was at high rpms in first and second gear, throttle modulation becomes impossible.

http://www.**********/stats/bosch%20bov%20install.pdf

I had an extra intake elbow lying around, so I modded one to recirculate. And I carry around the unmodified one and a VTA bov for when I want to sound cool.

EDIT: WTF? Replace the *'s with 15psi .com

wtf... Language filter?
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Old 01-23-2008, 03:36 AM   #14
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Quote:
Originally Posted by Bryceness View Post
I wouldn't mess with the dashpot, though I bet adjusting your base idle higher to around 1000 rpms would help with it. This is kind of the reason I installed a recirculated bosch bov. Other reason was at high rpms in first and second gear, throttle modulation becomes impossible.

http://www.**********/stats/bosch%20bov%20install.pdf

I had an extra intake elbow lying around, so I modded one to recirculate. And I carry around the unmodified one and a VTA bov for when I want to sound cool.

EDIT: WTF? Replace the *'s with 15psi .com

wtf... Language filter?
Ive been wondering about that... What did Jim do? I mean, besides tell me that he'll have intercooler piping for me in 90 days then stop answering my emails... I think I called him in July to get some parts...
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Old 01-23-2008, 05:27 AM   #15
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dont bother with any of the fixes (raise idle, one way check valve) exept to recirculate your bov. My car ran like *** before i recirced, same problems you are having. I recirculated it and it runs perfect.

vta is fun, but running like ****, and having cops turn their head whenever you shift is not so fun
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Old 01-23-2008, 09:45 AM   #16
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Quote:
Originally Posted by elesjuan View Post
Ive been wondering about that... What did Jim do? I mean, besides tell me that he'll have intercooler piping for me in 90 days then stop answering my emails... I think I called him in July to get some parts...

besides crap out some jb welded **** pipes you may/may not get in this century? oh nothing.
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Old 01-23-2008, 11:52 AM   #17
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where can u get a recirculating pipe, the u shaped one to fit my greddy setup, or will i have to tap it and put some sort of fitting into it?

but yea, i drove it to school today (where i am right now) and it was all cool and ****,
lots of kids were standing around where they funnel to classes.
so i felt like this was prime time to be a dooche bag
its kind of a long straight to the parking lot which happens to go by where all the kids funnel in,,
i got on it and right where there was like 45-50 kids, i blew off,
made a few girls jump, buncha kids looked over and then looked again when they realized it was a miata

then i went around the building and into the parking lot,
where i stalled........ (but no one saw so its ok!) lololol

even tho its fun and makes a buncha noise ,
stalling and looking like an *** is not
,i need to fix this


edit
just read the bosch install,, i need to tap, thanx guys
i dont know what ide do with out all of you

...probly still drive a na miata....
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Old 01-23-2008, 11:55 AM   #18
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Quote:
Originally Posted by urgaynknowit View Post
then i went around the building and into the parking lot,
where i stalled........ (but no one saw so its ok!) lololol

even tho its fun and makes a buncha noise ,
stalling and looking like an *** is not
,i need to fix this
Told you.
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Old 01-23-2008, 12:00 PM   #19
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grammar and paragraph structure would be my first concern. mini-magna.
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Old 01-23-2008, 01:03 PM   #20
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Quote:
Originally Posted by Braineack View Post
grammar and paragraph structure would be my first concern. mini-magna.
sorry, English is my second language

I use spell check a lot

I cant use that excuse much longer tho,
Ive been here about 10 years
I'm just lazy and have shitty grammar
work with me here
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