Manual control of IAC motor

John Dammeyer johnd at autoartisans.com
Tue Oct 19 22:09:22 GMT 1999


Gary,

Odds are this is a stepper motor and the motor is moved forward and back by
energizing the coils in sequence.  Check out L293D series device as a possible
chip for driving the motor.

John



Date: Tue, 19 Oct 1999 07:53:07 PDT
>From: "Gary Moulton" <gmoabrim at hotmail.com>
>Subject: Manual control of IAC motor
>
>Can someone tell me which terminals of the IAC motor runs the pintle in and
>out? The wiring diagrams show two coils and the connector has 4 terminals.
>Does one coil send the position back to the ecm and the other is a 12 volt
>reversable dc motor?
>
>Application is 1994 Mopar 4.0L EFI in a 1982 Jeep CJ-7, and what I want to
>do is be able to manually adjust the idle lower than the 750-800 rpm when
>off-roading. I have connectors and a harness and some electrical experience.
>I plan to have a switch to disconnect the IAC from the system for manual
>control and a spring loaded switch to "bump" the IAC position in or out.
>There is a company offering such a controller for more money than I think it
>should cost to build one myself. Thanks in advance
>
>Gary M
>gmoabrim at lasal.net
>
>______________________________________________________
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>------------------------------
>
>Date: Tue, 19 Oct 1999 14:44:57 EDT
>From: EFISYSTEMS at aol.com
>Subject: Re: DIY_EFI Digest V4 #589
>
>an eprom is an eprom is an eprom,,,,,doesn't matter what it's used in...not
>GM specific....hth's
>- -Carl Summers
>p.s. a 7730 is used in 90-92 camaro/firebirds and others
>
>In a message dated 10/19/99 2:29:35 AM Pacific Daylight Time,
>DIY_EFI-Digest-Owner at efi332.eng.ohio-state.edu writes:
>
><<
> How exactly do you use the prom equipment talked about on E-bay to calibrate
> OEM computers?
>
>
> - -----Original Message-----
> From: DIY_EFI-Digest-Owner at efi332.eng.ohio-state.edu
> [m >>
>
>------------------------------
>
>End of DIY_EFI Digest V4 #590
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