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Reload this Page How to adjust idle by turning distributor?????

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Old 10-05-2009, 03:06 PM   #1
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How to adjust idle by turning distributor?????
Went for PA vech inspection and the vech failed because the idle is to high the garage said i can turn the idle down by turning the distributor? Has anyone done this or is there other ways? I have new plugs and wires no vacumun leaks no exhaust leaks. Thanks in advance for any help.
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Old 10-05-2009, 03:11 PM   #2
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Re: How to adjust idle by turning distributor?????
This is sort of true, but doing this may cause you to fail the emissions test. First look for vacuum leaks and such.
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Old 10-05-2009, 03:34 PM   #3
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Re: How to adjust idle by turning distributor?????
What is your idle rpm?

Moving the distributor will change you base timing, not a great idea unless it's set incorrectly. There may be an adjusment on the TB to close the blade some, but the idle is controlled by the IAC.

If it's excessively high as Atilla said check for a vacuum leak.
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Old 10-05-2009, 05:53 PM   #4
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Re: How to adjust idle by turning distributor?????
Quote:
Originally Posted by 3rd gen Will View Post
There may be an adjusment on the TB to close the blade some, but the idle is controlled by the IAC.
IAC passages may be carboned up not allowing IAC to seat correctly.
If it hasn't been done recently , take TB off disassemble and clean.Then reset idle
See
http://www.corvetteactioncenter.com/...and+Idle+Speed
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1987, 1991, 454, 84, 87, 91, adjust, adjustment, camaro, distributor, engine, iac, idle, speed, trans
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