[Gmecm] IAC control??

[David Haggard]

Jim,
 It's available on the gmecm website, or off one of the linked sites from there. But I have attached it to your personal e-mail address.

David

> -----Original Message-----
> From: gmecm-bounces at diy-efi.org 
> [mailto:gmecm-bounces at diy-efi.org] On Behalf Of Jim Sloan
> Sent: Saturday, June 25, 2005 5:42 PM
> To: gmecm at diy-efi.org
> Subject: RE: [Gmecm] IAC control??
> 
>  Where can I access the "747 IAC Control" document?
> 
> Thanks.
> Jim 
> 
> > -----Original Message-----
> > From: gmecm-bounces at diy-efi.org
> > [mailto:gmecm-bounces at diy-efi.org] On Behalf Of David Haggard
> > Sent: Friday, June 10, 2005 9:28 AM
> > To: gmecm at diy-efi.org
> > Subject: RE: [Gmecm] IAC control??
> > 
> > Here's a possibility. 
> > 
> > If you have changed the "IAC steps vs. Coolant temp" table 
> (controls 
> > cold-engine IAC settings), there is another couple of settings that 
> > can make it "hang" or speed up. I had this same issue myself, and 
> > found the answer.
> > 
> > If you have lowered the settings in that table, then you might also 
> > need to lower the "Kickdown steps."
> > 
> > >From the document "747 IAC Control"--
> > <quote>
> > 	0x5D7: Kickdown delay timer value (seconds).
> > 	0x5D8: Kickdown steps.
> > 
> > 	These two together form a post-startup rpm reduction. 
> > 	The kickdown delay timer starts right after startup. 
> > 	Once the timer has expired, the IAC is extended by
> > 	the amount of kickdown steps.
> > 
> > 	A nuance: The kickdown steps must be less than the
> > 	steps used in the IAC position vs. coolant table
> > 	value (0x5F5): Otherwise kickup will occur. The 
> > 	kickdown steps are subtracted from the IAC position
> > 	steps, and are added to a term that is decayed out.
> > <end quote>
> > 
> > When in diagnostic mode, I think these settings are 
> ignored, and would 
> > allow normal operation.
> > 
>  
> 
> 
> _______________________________________________
> Gmecm mailing list
> Gmecm at diy-efi.org
> http://lists.diy-efi.org/mailman/listinfo/gmecm
> 
> 
> --
> No virus found in this incoming message.
> Checked by AVG Anti-Virus.
> Version: 7.0.323 / Virus Database: 267.8.0/27 - Release Date: 
> 6/23/2005
>  
> 

-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.323 / Virus Database: 267.8.0/27 - Release Date: 6/23/2005
 
  
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 747 ECM IAC Control.txt
Url: http://lists.diy-efi.org/pipermail/gmecm/attachments/20050625/8657b881/attachment.txt