[Gmecm] $8D code "issue"?

[Brendan Patten]

I'd like to see a datalog and watch the commanded idle.  Does it try to
start and sputter then die, or what is the chain of events?

I'm looking at doing a $8D big block 489 inch motor. 

thanks

-----Original Message-----
From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On
Behalf Of Scott Peitzsch
Sent: Tuesday, September 26, 2006 3:15 PM
To: gmecm at diy-efi.org
Subject: Re: [Gmecm] $8D code "issue"?

> I'm happy driving my 1227727 converted 323i for the last month, but I
> found the following issue:
> When I crank the engine very short and the engine doesen't start, but
> rotates, then if I try to restart it right away, the engine starts OK,
but
> the commanded IAC position stays sky-high and gets me a 2500RPM idle
....
> and doesen't want to come down until I shut the engine off and restart
> it again.
> 
> Is this some funny side-effect of my combination of non-standard
values
> I used to adapt this mask to my engine? (the engine is a I6 + DIS)

My '730 ECM running $8d to operate a 454 exhibits the exact same
behavior.
I suspect its an inherent feature/flaw in $8d.

-Scott
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