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Does the idde Valve, closes when throttle is pressed??
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settra
DIP8 - Involved
Joined: Tue Jan 14, 2014 6:05 pm Posts: 29
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hello forum. i was wandering. on electronic controled idle valves, does the valve, completely closes when you press the throttle? or it remains on the position it was before you pressed???
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Thu Jan 23, 2014 2:10 pm |
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Fred
Moderator
Joined: Tue Jan 15, 2008 2:31 pm Posts: 15376 Location: Home sweet home!
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This is a matter of taste.
_________________DIYEFI.org - where Open Source means Open Source, and Free means Freedom FreeEMS.org - the open source engine management system FreeEMS dev diary and its comments thread and my turbo truck!n00bs, do NOT PM or email tech questions! Use the forum! The ever growing list of FreeEMS success stories!
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Thu Jan 23, 2014 6:46 pm |
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settra
DIP8 - Involved
Joined: Tue Jan 14, 2014 6:05 pm Posts: 29
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i was suspecting something like that... cool! thanks allot 
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Thu Jan 23, 2014 7:06 pm |
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Marek0086
DIP8 - Involved
Joined: Fri Apr 24, 2015 5:26 pm Posts: 16
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Yeah thats exactly what i wanted to know... for years!.
What kind of strategy do OEM's use?. I would be GUESSING that the IAC-valve would be commanded closed at higher rpm/load... so as to minimize turbulence/restriction in the throttle body?
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Fri Apr 24, 2015 6:12 pm |
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Marek0086
DIP8 - Involved
Joined: Fri Apr 24, 2015 5:26 pm Posts: 16
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... anyone?
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Mon Apr 27, 2015 2:30 pm |
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Nige
QFP80 - Contributor
Joined: Sat Aug 10, 2013 5:47 am Posts: 61 Location: New Zealand
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No idea what OEMs do, but I prefer it to stay at a fixed open value before trying to command idle when you let the throttle off. It is just smoother in my experience. I want control over that value though. Larger throttle openings it doesn't really matter unless it's a massive valve I would think, even then probably doesn't matter depending on plenum design. Like Fred said, whatever you prefer - which you will find out with tweaking.
_________________ IRC nick: ignitionigel or Nige
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Sat May 09, 2015 1:21 am |
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