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Setting Idle Stop Scew on TPI

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Old Feb 10, 2013 | 06:37 PM
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Setting Idle Stop Scew on TPI

Car has 58mm Holley Throttle Body. How do you set the idle stop screw and and at the same time adjust the TPS voltage?
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Old Feb 10, 2013 | 06:58 PM
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Re: Setting Idle Stop Scew on TPI

Originally Posted by MrPackstin
Car has 58mm Holley Throttle Body. How do you set the idle stop screw and and at the same time adjust the TPS voltage?
Adjust TPS first, then set minimum idle and go back and check TPS again. If it was way off you might have to do it more than once.
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Old Feb 10, 2013 | 07:28 PM
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From: Clarksville,TN
Car: 1989 GTA
Engine: 5.7 w/Paxton
Transmission: 700R4
Axle/Gears: 3.27
Re: Setting Idle Stop Scew on TPI

The problem then is the butterflies on the throttle body are more or less open than they should be at start-up. Am I missing something?

Last edited by MrPackstin; Feb 10, 2013 at 07:47 PM.
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Old Feb 10, 2013 | 10:12 PM
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Re: Setting Idle Stop Scew on TPI

Originally Posted by camarorookie
Adjust TPS first, then set minimum idle and go back and check TPS again. .
You disable the IAC , set min idle speed with the screw , then reset TPS

http://www.corvetteactioncenter.com/...-corvette.html
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