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wiring ford IAC to gm style plug for classic fast.

Discussion in 'EFI Tuning Questions and Engine Management' started by chriscrna, Feb 6, 2008.

  1. chriscrna

    Joined:
    Feb 27, 2005
    Can someone please post how to wire ford IAC plug up in place of GM plug on my classic fast. Thanks in advance.
     
    chriscrna, Feb 6, 2008
    #1

  2. ShaneH

    Joined:
    Feb 3, 2003
    Not sure what you're trying to do here as FAST is only designed around the GM IAC.
     
    ShaneH, Feb 6, 2008
    #2

  3. chriscrna

    Joined:
    Feb 27, 2005
    someone told me that you could wire the GM plug onto the ford IAC harness
     
    chriscrna, Feb 6, 2008
    #3

  4. ShaneH

    Joined:
    Feb 3, 2003
    The GM units are stepper motors while the Ford motors are pulse width modulated. The two technologies are not compatible.
     
    ShaneH, Feb 6, 2008
    #4

  5. Hammerhead1

    Joined:
    Dec 20, 2007
    That is correct, you will have to obtain an adaptor plate and a GM TPI " screw in " style IAC motor. You should be able to get the adaptors from Dale Cherry at Berrel Auto.

    Berrel Auto 215-675-8515


    Hadley O.
     
    Hammerhead1, Feb 6, 2008
    #5

  6. BottleFed70

    Joined:
    Sep 7, 2006
    x3 They are completely different styles and are not compatible.

    Check out the megasquirt forums. A couple of vendors send IAC blocks which allow you to run a GM stepper IAC in just about any vehicle. Fast probably has a similar solution. The megasquirt can also be easily modified to run a PWM IAC.... perhaps the same thing can be done with the FAST?
     
    BottleFed70, Feb 6, 2008
    #6

  7. Matt Cramer

    Joined:
    Sep 29, 2006
    Yep, we sell one of these blocks - it uses a Jeep stepper IAC and can work on most engines.

    [​IMG]#ad


    I don't see why it shouldn't work with FAST or other systems that use a stepper IAC.
     
    Matt Cramer, Feb 7, 2008
    #7

  8. edl406

    Joined:
    Feb 16, 2008
    edl406, Feb 16, 2008
    #8
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