Re: Can a GM ECM be tuned

["alexpeper" <alexpeper@email.msn.com>]

Just what GM wants you to reprogram, intended for computer
repalcement or
service bulletin.  Seems you can write a program to
intercept data transfer from
PC to tech-2 data transfer.  Possible they just use
checksum.
Alex
----- Original Message -----
From: David Posea <dposea@mindspring.com>
To: <gmecm@diy-efi.org>
Sent: Sunday, July 30, 2000 5:19 PM
Subject: Re: Can a GM ECM be tuned


> Hmmmm, if I bought a Tech-2, does it contain the software
to change all of
> the calibration data, or only selected items? Or would I
still need to write
> software to update the binary image prior to flashing?
>
> David
> -----Original Message-----
> From: alexpeper <alexpeper@email.msn.com>
> To: gmecm@diy-efi.org <gmecm@diy-efi.org>
> Date: Sunday, July 30, 2000 6:05 PM
> Subject: Re: Can a GM ECM be tuned
>
>
> >You can get a Tech-2 and flash kit from OTC for about
3000.
> >GM dropped certification requirement.  CD's from Helm's
> >Alex
> >
> >----- Original Message -----
> >From: David Posea <dposea@mindspring.com>
> >To: <gmecm@diy-efi.org>
> >Sent: Sunday, July 30, 2000 3:46 PM
> >Subject: Re: Can a GM ECM be tuned
> >
> >
> >> So what is necessary for reflashing? Can it be done
with
> >common equipment?
> >>
> >> David
> >> -----Original Message-----
> >> From: David Cooley <n5xmt@triad.rr.com>
> >> To: gmecm@diy-efi.org <gmecm@diy-efi.org>
> >> Date: Sunday, July 30, 2000 11:59 AM
> >> Subject: Re: Can a GM ECM be tuned
> >>
> >>
> >> >At 08:40 PM 7/29/00, you wrote:
> >> >>by burning a new ROM chip or something similar?
> >Specifically a 96+ ? Can
> >> any
> >> >>one give me some links for additional info?
> >> >
> >> >
> >> >They can be reflashed... Not sure the address, but
there
> >are several people
> >> >that have cracked into the PCM for the 96 LT1.
> >> >I also believe there is a rom dump from that PCM on
the
> >ftp site...
> >> >ftp://diy-efi.org/incoming
> >> >
> >> >
> >>
>
>>==========================================================
=
> >> >David Cooley N5XMT Internet: N5XMT@triad.rr.com
> >> >Packet: N5XMT@KQ4LO.#INT.NC.USA.NA T.A.P.R. Member
#7068
> >> >We are Borg... Prepare to be assimilated!
> >>
>
>>==========================================================
=
> >> >
> >>
>
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