[Gmecm] The next step: E67 ECM

[davesnothereman at netscape.net]

Typically, when an HPT customer's vehicle fits the year, make, model, and engine requirements for supported vehicles but the calibration is not recognized, HPT asks for a VIN.? Usually within a day or less they have a new version of HPT which works with that vehicle.? Additionally there is at least one GM sold, non-factory installed calibration which has the mask ID / engineering bit set (according to HPT) which prevents HPT from making any changes, since they "cannot properly identify the calibration."? Doesn't sound much like reverse engineering there.? Sounds more like a database of VIN -> mask ID lookups which fails with the non-factory calibration.

Zaphod



-----Original Message-----
From: WopOnTour <wopontour at hotmail.com>
To: gmecm at diy-efi.org
Sent: Thu, 21 Jun 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.?
>>?
>> Darren?
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