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Thread: IAC install

  1. Member SirSpectre's Avatar
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    Megasquirt 3x Powered 98 Jetta GT 2.0
    05-01-2012 09:48 PM #1
    So I'm building this fancy intake for my 16v and decided I really want an IAC. Ive been driving without one for close to a year. IT SUCKS. I know there is a 2 wire stepper IAC that is easily used for Megasquirt, but I cant for the life of me figure out what vehicles they are one so I can snag one from a junk yard. Any one know off hand? Ford, GM dont care as long as I can pipe it in, and wire to MS. Then of course is figuring out how it all connects.....
    98 Jetta 2.0 w/ Megasquirt 3/3x fully sequential
    ABA 16vT build thread

  2. Senior Member need_a_VR6's Avatar
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    05-02-2012 07:26 AM #2
    2 wire off an OBD1 VR6 or ABA or any of the Ford 2 wire valves are your best bet.
    -Paul
    1995 GTI VR6 - 12.90@106 R32 power - 12.833@106 12v power
    KPTuned - Official MegaSquirt: Sales - Repair - Installation - Tuning
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  3. Member SirSpectre's Avatar
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    Megasquirt 3x Powered 98 Jetta GT 2.0
    05-02-2012 01:11 PM #3
    Quote Originally Posted by need_a_VR6 View Post
    2 wire off an OBD1 VR6 or ABA or any of the Ford 2 wire valves are your best bet.
    Hmm. I happen to have an obd1 ABA IAC laying around. I never noticed any wires on it. I'll have to take a second look. Just in case, do you know which Fords have the 2 wire? Everyone I've tried to find seems to not have them.
    98 Jetta 2.0 w/ Megasquirt 3/3x fully sequential
    ABA 16vT build thread

  4. 05-02-2012 08:24 PM #4
    probably no wires because you need the pigtail.
    Up and Atom!

  5. Member Prof315's Avatar
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    05-03-2012 05:44 AM #5
    Quote Originally Posted by SirSpectre View Post
    Hmm. I happen to have an obd1 ABA IAC laying around. I never noticed any wires on it. I'll have to take a second look. Just in case, do you know which Fords have the 2 wire? Everyone I've tried to find seems to not have them.
    Pretty much all Fords that are not DBW have a 2 wire IAC. Go with the OBD1 ABA/VR set up it uses a standard Bosch fuel injector connector. If you can't find one I have a bunch of Digi 1 2 wire IACs, different connector (but I probably have one) and operates best in a slightly different DC range but otherwise just like the OBD1 IAC. LMK
    The Professor
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    92 Corrado OBD2 ABA Powered by MS3Pro
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    Sandy Linfert 11/4/1991 - 5/13/2013

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