[Gmecm] Back to square one

[Robin Handley]

BTW: I'm working on the assumption that PROMgrammer has a 100% accurate and
complete list of the Sunbird and Sy/Ty calibration values and tables. Is
this fair?

Thanks,

Robin

----- Original Message -----
From: "Robin Handley" <Robin at FuryWorld.fsnet.co.uk>
To: <gmecm at diy-efi.org>
Sent: 14 May 2006 06:44
Subject: Re: [Gmecm] Back to square one


> > I should probably know this... you've been around for a while.  What
> > engine are you working on?  Is this a Ford engine?  Vauxhall?
>
> My GMECM was running the ignition on a Ford (Kent) Crossflow (highly
tweaked
> 1600cc) but I replaced with with a Vauxhall 2.0XE (cylinder head design by
> Cosworth).
>
> > The promid will usually work, but I can compare the checksum to the
> > values in the calibration and sometimes come up with a proper ID.
> > Promid 3411 is AUWR3607, 1987 Sunbird GT 2.0 Turbo, manual trans.
>
> The checksum is $D1EE in all the versions that I have. That would be
great.
> Thanks. :-)
>
> > Possibly.  I would guess that the P4 document was written by someone
> > close to, but directly involved with, the GM $58 code.  Some of the
> > functions are described incorrectly, some of the described functions do
> > not exist in the $58 calibration, and some of the important functions
> > are missing altogether.  The GMECM world has been a detective's
> > paradise for years.  And the turbo P4 document is akin to clues based
> > on hearsay.  I may not have knowledge of specific issues in that
> > document, but I'll try to help with any you've found.
>
> Where I am now, the doc appears to be 'paradise' compared to how I was
with
> ANHT - but I haven't yet done the trawl through the PROMgrammer export to
> see what's missing from the doc. That's next on my list. I suppose my
other
> option is to try and use what I've learned and apply it to ANHT - when
I've
> learned all I can I will have to make a decision about whether it's
actually
> worth the effort to switch from ANHT to the Sunbird code. More homework to
> do...
>
> Thanks for all your continued help. :-)
>
> Robin
>