Idle Air Restrictor

juddyj

04svt-racer
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Apr 9, 2005
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oceanport NJ
does anybody have the idle air restrictor installed in their focus? I heard the mod was good for bringing down the revs after you let off the gas, but I heard that it can be a pain when the a/c is on or in parking lots because the car has a tendency to stall out. I was told that if you drill out the piece to 1/4 inch that it will take away your stalling problems, does anyone know for sure?
 

elliot400

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Jan 25, 2003
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"The Triangle", NC
No idea, but I'd be really careful fooling around with idle air control, you might not like how it ends up, with no way to fix it. Good luck! E-
 

Primaris

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Apr 8, 2003
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KY
You actually restict the idle air inlet in the TB. I've read a post stating 1/8 in. opening was used. I'm not sure what you are thinking about drilling out.
 

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