V6 Vortec to V8 Vortec Conversion

[Len Sabatine]

     Most Wrecking yards supply the Vin from the vehicle of which the PCM
     was removed. With the Vin you can obtain all  vehicle information,
     including the correct information to program a new  Key Decoder Module.
     Powering up the PCM and plug in a Tech2 to request Vin ID and Calibration
     ID. You can enter the Vin on GMs Cal ID site as well to get the latest SW
     Update information. Unfortuantly Most Manufacturers and Techs are 
concerned
     with Vin Tampering Statutes in force . This can be a sticky issue. FYI.

     All it takes is knowing the right people , with the knowledge and 
appropriate
     Hardware. Note that GM Tech2 and GM Software allows this on a 1 Shot
     basis , so all ducks must be in line. I'm not at liberty to supply any 
additional
     information  on the subject. Hope this is helpful to you.
     LT1_Edit works on LT1s. *)
     Len

>I haven't found any info about lt1 edit working with the vortech PCM's...
>
>Here is what I've learned from a business that reprograms these quite a bit.
>1st of all... use a 96 or 97 PCM rather than 98 up because GM now uses the
>passlock II system.  Yes, you can get around it with a resistor... but in
>order to figure out the correct resistor to use, you need to have the
>steering column and wires from the donor vehicle.  It's how the install the
>remote starters for alarm systems...
>
>My luck... didn't grab the passlock out of the steering column before the
>vehicle was crushed.
>
>So, on to programming my 96 PCM for a V8 rather than the V6... I've been
>told by orgs like hypertech... that for their products to work, have to burn
>a V8 vin into the PCM before using it on the pcm.. otherwise it will
>automatically detect that it is infact a v6 pcm...
>
>So... I wonder if I should purchase another PCM a V8 from 96... and then
>figure out how to mess with the tables.
>
>I've looked at the autoxray site and their products look to be only
>scanners... hmmmm.... does everyone sell a scanner that does only that?
>I've got a buddy that bought a Matco scanner... but it doesn't program the
>PCM... I guess you need both.
>
>Back to the research....
>
>-----Original Message-----
>From: Gregg Dickson [mailto:gdickson at sbti.com]
>Sent: Thursday, August 16, 2001 2:46 PM
>To: gmecm at diy-efi.org
>Subject: RE: V6 Vortec to V8 Vortec Conversion
>

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