New - help on GM MAF

[Mark Romans]

Well having the listing is a start, but if you want to use an editor that
puts it all together for you, contact Terry Kelley, he has written an editor
that he has put a ton of time into that puts it all in easy to use format.
I don't know what he gets for it, but I can vouch that it works, I've seen
him use it.

Mark
-----Original Message-----
From: steve ravet <Steve.Ravet at arm.com>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: Monday, June 14, 1999 3:42 PM
Subject: Re: New - help on GM MAF


>Bob, "ECMGUY" has a completely disassembled 165 listing on his home
>page.  The tables are all laid out, and the code is all there to figure
>out how it works.  See
>
>http://www.geocities.com/MotorCity/Shop/9938/hacks.html
>
>--steve
>
>Knowlden and/or Eller wrote:
>>
>> Hi everyone. I subscribed the DIY-EFI a couple of weeks ago. Yep, I have
>> been sittin' in the shadows watchin'just to get a sense of the community.
>> Have gotten a little bit of "sense" so I have spent some time searching
the
>> archives. What I have been looking for is information on the GM MAF
systems.
>> My searches (on things like "lv8", "filtered load variable", "MAF") have
>> produced some good information but of course I want more. I am building
an
>> '89 Corvette targeted to be supercharged. I have rebuilt the engine and
it
>> currently is basically stock, being the careful methodical person that I
am,
>> I want to keep the number of unknowns to a minimum. Now I need to
>> understand, and be able to modify, the "control system". I have diacom
and
>> promedit. I have found the base spark tables and have successfully
"burned"
>> my own chips. I have uploaded to DIY-EFI ftp my memcal, APYP, ecm p/n
>> 1227165, along with a description text file that includes the ".ecu"
>> parameters for what I know. What I don't understand is what the fuel
tables
>> would look like, or if there even is a "fuel table". It seems to me that
>> with MAF I would need some kind of table of conditions  (i.e.WOT) and
>> desired a/f ratio but I don't know. Can anybody help me here? Can you
>> suggest reading material to help me understand how the gm MAF systems
work
>> in theory and/or practice? Does anyone have a MAF memcal binary with
known
>> offsets so I can see what the tables look like, or at a minimum a memcal
for
>> a 305 MAF tpi with my ecm p/n? Not asking for much am I.
>>
>> WOW is this long. Sorry.
>>
>> Thanks for any help provided.
>>
>> Regards,
>>
>> Bob Knowlden
>
>--
>Steve Ravet
>steve.ravet at arm.com
>Advanced Risc Machines, Inc.
>www.arm.com
>