[Gmecm] P6 ECM information?

[Ryan Hess]

I'm working with the 7730 right now, and would like some extra code  space and processing power.  I'd like to be able to experiment a  bit...  For instance, I'd like to be able to toggle between batch  fire and sequential to see the differences in fuel economy and idle  quality.  Is it worth it to an average user?  I don't  know...  I think it would be neat to find out.  The 7730  isn't fast enough to do sequential... at least I don't think so.   It appears to be pretty bloated as-is.  I'd also like some more  I/O available to add some extra features.
  
  Modula doesn't sound very nice.  Aside from getting the source code, is there any way around the compiled code?
  
  Ryan

Steve Ravet <Steve.Ravet at arm.com> wrote:  Ryan, are you writing your own code that you've run out of memory and
CPU cycles?  The 32 bit computers should have plenty of both, and there
are tuners available for them.  tunercat has a package for the 96 and 97
pickups, and probably others as well.  I'm currently working on a USB<->
VPW cable that can be used for scan tool and reflashing functions on
these computers.

These computers are programmed in a version of modula, so there won't be
any commented disassemblies.  I do have some information on the
internals of these PCMs, I need to get it posted one of these days.

--steve 

> -----Original Message-----
> From: gmecm-bounces at diy-efi.org 
> [mailto:gmecm-bounces at diy-efi.org] On Behalf Of Ryan Hess
> Sent: Tuesday, April 04, 2006 9:28 PM
> To: gmecm at diy-efi.org
> Subject: [Gmecm] P6 ECM information?
> 
> Hi everone,
>   
>   I'm investigating possible upgrades for my P4 computer.  At 
> the  moment it doesn't have enough processor power or free 
> space.  I  found some information about the P6 family with 
> dual processors and a  27512 eprom and/or flash memory.  
>   
>   Now as far as I know, these are the ECMs you'd find on the 
> OBDII LT1's  and other cars.  Or maybe I'm all mixed up and 
> what I'm really  talking about is a P66?
>   
>   At any rate, if the dual processor ECM is the LT1 ECM, I 
> know these  have been hacked, or at least enough to create 
> the programs out there  such as LT1edit (?).  Are there any 
> commented  disassemblies???  Maybe more importantly, are 
> there any schematics  of these ECMs?  Or ANY ECM a few steps 
> above the P4?
>   
>   Thanks,
>   Ryan
> 
>    
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