[Gmecm] The next step: E67 ECM

[Jay Vessels]

Hi there!

Or whose lawyers sign the NDAs...  I'd guess GM probably licensed the 
requisite information to do said tuning.

Jay Vessels
1982 Chevrolet S-10 Sport, 2.8V6 TBI
1984 Chevrolet S-10 Blazer Sport, 2.8V6 (TBI pending)

Programmer wrote:
> It's not what you know....its' 'who' you know.
> 
> Lyndon.
> 
> ----- Original Message ----- From: "Scott Peitzsch" <jlg-sep at comcast.net>
> To: <gmecm at diy-efi.org>
> Sent: Thursday, June 21, 2007 3:17 PM
> Subject: Re: [Gmecm] The next step: E67 ECM
> 
> 
>> Nope - not at all likely to have been "backwards engineered".
>>
>> Me thinks the more likely method was "backdoor engineered".
>>
>> As in - documentation made its way out the back door!<g>
>>
>> -Scott
>>
>> ----- Original Message ----- From: "WopOnTour" <wopontour at hotmail.com>
>> To: <gmecm at diy-efi.org>
>> Sent: Thursday, June 21, 2007 4:48 PM
>> Subject: Re: [Gmecm] The next step: E67 ECM
>>
>>
>>> Since almost ALL aspects of the E67 calibration can currently be 
>>> altered/modified via HP Tuners, doesn't this mean that the decompiled 
>>> calibration and OS data must be floating around out there in 
>>> cyber-space somewhere?
>>> This was so obviously NOT something that was "backwards engineered"...
>>> WOT
>>> ----- Original Message ----- From: <bcroe at juno.com>
>>> To: <gmecm at diy-efi.org>
>>> Sent: Wednesday, June 20, 2007 10:56 PM
>>> Subject: [Gmecm] The next step: E67 ECM
>>>
>>>
>>>> I suppose there is no physical access to the computer
>>>> (data & memory) buses.  If there were, equipment could
>>>> pick up the actual code.
>>>>
>>>> 20 Jun 07  "Darren Freed" <darrenfreed at gmail.com> writes:
>>>>> Nevertheless it would be very interesting to look at
>>>>> the code and compare various configurations.
>>>>>
>>>>> HPTuners is fine if all you want to do is adjust parameters
>>>>> in the calibration data.  If you really want to understand the
>>>>> PCM, it is useless, because the file generated by a read
>>>>> of the pcm is encrypted - very annoying.