Ford 2W IAC.

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107merc
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Ford 2W IAC.

Post by 107merc »

100_1448-1.jpg
Found some IAC info on EFI's site about idle valve options. Say's valve settings in T/S (0% = off or 100% = off) depends on whether
the valve has to open against the spring or shut against the spring. What if you have no spring?? Thought I had a bad (new) unit but the IAC on my working
Ford van also has no spring. Any info appreciated.
jsmcortina
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Re: Ford 2W IAC.

Post by jsmcortina »

From what I can see of it, that looks like a standard Ford idle valve.

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107merc
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Re: Ford 2W IAC.

Post by 107merc »

jsmcortina wrote:From what I can see of it, that looks like a standard Ford idle valve.

James
It is. so what T/S setting should I use, normal or inverted. Thanks.
nathaninwa
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Re: Ford 2W IAC.

Post by nathaninwa »

Plumbed like this settings are 0 for closed and 100 for full open

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Blown88GT
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Re: Ford 2W IAC.

Post by Blown88GT »

Return spring is not visible on all of my Ford IAB's.
Image
I've bench tested many of these. Spring is not that strong. You can easily blow through from inlet to outlet. Solenoid ON compresses the spring. Connect it directly to the car battery & watch it work. Just touch it, don't leave it on; it's not designed for 100% duty cycle.
TS setting
Valve Mode - Normal, 0% = off
Valve Frequency - 124Hz
1988 Mustang GT, 59k miles, Orig Owner
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
107merc
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Posts: 167
Joined: Fri Mar 28, 2014 10:35 am

Re: Ford 2W IAC.

Post by 107merc »

Blown88GT wrote:Return spring is not visible on all of my Ford IAB's.
Image
I've bench tested many of these. Spring is not that strong. You can easily blow through from inlet to outlet. Solenoid ON compresses the spring. Connect it directly to the car battery & watch it work. Just touch it, don't leave it on; it's not designed for 100% duty cycle.
TS setting
Valve Mode - Normal, 0% = off
Valve Frequency - 124Hz
Thanks for responding, the plunger on mine is on the opposite ie; solenoid side.
Blown88GT
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Re: Ford 2W IAC.

Post by Blown88GT »

107merc wrote:...Thanks for responding, the plunger on mine is on the opposite ie; solenoid side.
Mine, too.
1988 Mustang GT, 59k miles, Orig Owner
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
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