DIY_EFI Digest V2 #261

[John Hess]

Again, reading and writing to the EPROM is no problem.  The point of 
my original post is that these "infomercial" products allow you to 
read and map the EPROMs.  They do what they are advertised to do, yet 
some would write the "Hot Rod" article off as an infomercial.  I do 
have a few of the memory addresses (thanks to others on this mail 
group), and am looking for others.  As I get them, I am writing small, 
specialized programs to remove VATS, set the idle table, etc on those 
specific EPROMS that I can verify the data locations on.  When I 
finish, I will (am) share(ing) the data and programs with 
contributors

----------
From:  Mark Taschek[SMTP:mtaschek at spdhw.dsccc.com]
Sent:  Thursday, August 07, 1997 4:32 PM
To:  diy_efi at coulomb.eng.ohio-state.edu
Subject:  RE: DIY_EFI Digest V2 #261

>
> Reading the PROM is actually quite simple.  Get a PROM
> Reader/Programmer.  Get a dual inline header strip.  Bend the long
> pins outward so that they can be plugged into the Programmer socket. 
>  Plug your Memcal onto the pins sticking up (the pinout for the Prom 
> is the first (I think 28 pins) of the header.  Cut off the rest of
> them and you can read (and burn an erased memcal).  The trick is not 
> reading or burning the EPROM;  but, in knowing where the various 
maps
> are on the PROM and what they are doing.
>
>
> ----------
> From:  Joe Boucher[SMTP:BoucherJC at lmtas.lmco.com]
> Sent:  Thursday, August 07, 1997 10:29 AM
> To:  diy_efi at coulomb.eng.ohio-state.edu
> Subject:  Re: DIY_EFI Digest V2 #261
>
> > From: Jennifer Rose <javer96 at snowcrest.net>
> > Date: Wed, 06 Aug 1997 21:39:54 -0700
> > Subject: Re: July "Hot Rod"
> >
>
> [snip]
>
> > >
> > >Hi Joe
> >
> >         Yes - read the article - feel it was mainly infomerchal 
for
> the software
> > programs. My .02$ worth.
> >
> > Vance
> >
> > ------------------------------
>
> Agreed!!  Mr. Peterson didn't get rich by being stupid.
>
> It was informative to me with details I didn't know.  I was unaware 
> how
> to read the prom.  Reading the prom has been mentioned on the list.
> Someone has mentioned having files of various proms. Now I know one
> method of doing it.  I also know I'll never have the resources to do 
> it
> myself.
>
> Joe Boucher
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  
	Ok so it has been said through the group that a prom can be read..
	(great) now can some one show me what some different tables look 
like???
	example that im looking for is water temp table??
				manafold air temp table??
				map table???
				and timing advace table???
	
	how easy is it to pick out the tables in the hex dump...
	I have some hex dumps but can't seem to notice any tables??
	
	thanks if anyone can help...
	
	eamil mtaschek at spdhw.dsccc.com