Intermittent High Idle, But Normal When AC Is On - Miata Turbo Forum - Boost cars, acquire cats.

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Old 05-15-2009, 01:38 AM   #1
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Default Intermittent High Idle, But Normal When AC Is On

It'll idle at 800 rpm most of the time and then suddenly go to 1500 rpm for a few minutes. It'll drop back down to 800 eventually. I assumed it was the IAC. It doesn't hunt.

I noticed something today though.

I can also control the idle change w/ the push of the AC button.
I turn on the AC and bam, idle drops to 800. Turn off the AC and booya, idle goes up to 1500 again.

Is the AC tied to the IAC?
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Old 05-15-2009, 03:09 AM   #2
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How the heck did this end up in "suspension"? Mods, can you please move this?
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Old 05-15-2009, 08:49 AM   #3
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Yes
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