[Gmecm] $8D IAC stalls engine on decel

[David Allen]

  Hey how have you set your minimum airflow setting?  Sounds like a problem both my cars have had at one time or another.  Engine should idle at base idle fully warmed up A/C off with IAC at 0 steps.
  Have you a VSS input?
Later,
David  


----- Original Message ----- 
From: "Tomas J. Sokorai Sch." <tsokorai at minimania.org>
To: <gmecm at diy-efi.org>
Sent: Sunday, August 27, 2006 6:39 PM
Subject: [Gmecm] $8D IAC stalls engine on decel


> Hi guys!
> 
> Well, my GM ECMed bimmer is getting almost into a nice shape. Managed to 
> correct the engine cuts @ 2000RPM by starting modifications from the backup 
> bin I had, but I couldn't figure why exactly it was doing that.... anyway... 
> now I have only *one* big driveability problem left:
> 
> On decels the IAC throttle follower keeps getting the commanded IAC steps down 
> to ZERO. And this happens quite a lot when downshifting, so when it is at 
> zero steps, I push the clutch and I get an instant stall.
> 
> Any ideas of why is the throttle follower getting the IAC down to zero? 
> Shouldn't it be keeping the minimum at a saner value (learned Keep Alive 
> steps for example)??
> 
> -- 
> Tomas J. Sokorai Sch.
> _______________________________________________
> Gmecm mailing list
> Gmecm at diy-efi.org
> Subscribe: http://lists.diy-efi.org/mailman/listinfo/gmecm
> Main WWW page: http://www.diy-efi.org/gmecm
>