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Fluctuating idle 2rz

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Old 03-11-2010, 05:26 PM   #1
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Fluctuating idle 2rz

Hello,

I have a 2rz that has a fluctuating idle when i stop at a stop light it runs fine, it seems like it can't catch its idle. when i first start it up and warm her up it idles at 1k, so its not the idle screw.. I appear to have no vacuum leaks.. I've cleaned my IAC valve. What ealse can i check? I'm really stumped on this one..



Yes this is a 86 corolla...
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Old 03-11-2010, 05:36 PM   #2
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I had the same problem on my old truck. It ended up being my vaccume spring if thats what its called on the side be the idle adjustment screw, there is this little pump and my boot on that was shot so when I would stop and come down to idle the boot wouldnt go down all the way to regular idle speed. Good luck I know how frustrating this can be.
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