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Hey guys, I just got my MPFI manifold today, and I know where the TPS, EACV, and air temperature plugs go, but there's one solenoid-type plug on the back of my manifold and I have no idea what it does.... so if somebody could educate me on it's purpose and what I hook it up to from my engine, it would be greatly appreciated!

Here's a picture of the sensor I'm talking about, please let me know if my other labelling is correct as well just to make sure..

http://www.mountaincable.net/~egodwin/sensor.jpg

Thanks!
 

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Fast Idle Control Solenoid Valve. It only gets used in extremely cold conditions (coolant temp below 14°F and engine speed below 1,800 rpm), so if you live in a warm climate, you can probably just ignore it. Otherwise it gets a wire to ECU pin B2 and power to the blk/yel wire from the same circuit as the EACV.
 
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