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What is this? 

 

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 Post subject: What is this?
Posted: Wed Oct 17, 2012 11:54 pm 
Stock as a Rock
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http://imageshack.us/photo/my-images/21 ... 100357.jpg

The part on top of the throttle body that has a wire plug connected to it, and usually has a black knob on the end of it (mines broken off). What is it and what does it do?

Cheers
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 Post subject: Re: What is this?
Posted: Thu Oct 18, 2012 12:07 am 
Getting Side Ways
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SA, Australia

Idle Control Solenoid or Air bypass system.
Quoted from tech doc
The Idle Speed Controller Valve, or otherwise known as the Idle Air Bypass System, is responsible for maintaining a smooth, and consistent idle, under different Engine Loads, and temperatures.
It does this by allowing a certain amount of air, to bypass the Throttle Body Butterfly, thereby increasing the amount of air entering the engine, under certain conditions, thereby increasing Engine RPM.
The Idle speed control valve is controlled by the EEC-V Engine Management system, and is a spring loaded stepped motor, that opens a small valve, that allows air to flow.

 

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 Post subject: Re: What is this?
Posted: Thu Oct 18, 2012 8:23 pm 
Stock as a Rock
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Age: 31

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NSW, Australia

Could the fact that the black knob on mine is brokn off cause any issues? Also where the knob was it looks like the previous owner has stuffed a match stick into the shaft lol.
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 Post subject: Re: What is this?
Posted: Thu Oct 18, 2012 9:27 pm 
Getting Side Ways
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VIC, Australia

the black knob is actually a filter. shouldnt be blocked off with a matchstick.

 

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