[Diy_efi] IAC control

[Shannen at grolen.com]

DOne option might be to use tha a/c input for the ecm to fool the ecm.
The idea would be to set the "normal" idle speed low for offroad, then
drive around with the ecm thinking the a/c is on all the time. There are
 usually values for "kicking up" the idle speed when the a/c is on.  So
you should use a switch on the a/c input to simulate a/c on at all times
except rock crawling.  I can say this is likely to work with a 7747, and
may work with your system.
Shannen
I>At 11:35 PM 5/24/2002 -0600, QQA Inc. wrote:
DI>>I am somewhat new to thisWhat I am trying to do is control my IAC from the 
DI>>drivers seat when rock crawling. Then, let the PCM control it when I'm 
DI>>gettin' groceries or goin' to the rocks I'm crawlin'. What I'd like to do 
DI>>is install some type of switch box in the cab of the CJ (Has a 93 5.7 
DI>>TBI). Then be able to switch the control from the PCM to manual. What I 
DI>>need to do is turn the idle down to 600 or so RPM because my gearing is 
DI>>extremely high when rock crawling. Any and all help is greatly 
DI>>appreciated.Thanks and God Bless!
DI>>
DI>This _may_ work, low rpm could still trigger stall saver spark control 
DI>though...
DI>http://members.fbody.com/RCowan99SSConv/stepper.html
DI>Bob D


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