How do you increase idle speed?

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Old 05-26-2000, 03:27 PM
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Default How do you increase idle speed?

Where do you change the idle speed on a 84 Audi 5000? I thought I had my vacuum problem solved. I wasn't getting A/C through the front vents (only the defrost). My mechanic fixed that problem but I'm still having trouble with the car going back and forth from 1000 rpm to 800 rpm. Does that sound like a vacuum problem or is it just idling too slow? Appreciate advice.
Old 05-27-2000, 07:44 AM
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Vacuum leak or ISV problem?....idle speed is correct!!
Old 05-29-2000, 08:30 AM
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Default Re: Vacuum leak or ISV problem?....idle speed is correct!!

Forgive my ignorance. What is ISV?
Old 05-30-2000, 12:04 PM
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Default Re: Vacuum leak or ISV problem?....idle speed is correct!!

Idle stabilizer valve. Another possibility is a bad oxygen sensor, which can cause a hunting idle.<p>--Jim 95 90SQ
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