Whats the correct procedure of changing VIN ???

[Engine_HP]

What do u guys do,

I tried:
1) Write entire withe a new VIN.
2) Change VIN
3) Relink VATS


Didnt work

[Bill@HPTuners]

Depends on the application unfortunately with multiple different pcm types by different makers ie ac delco vs bosch, E38 vs LS1, etc.

I know for GTP's you actually have to use the vin change window then the 30 second key on/off procedure(I did one on a customers car several years back) I think write vin/vats/tunerlock works well on the gen 4 pcm's.

[Montecarlodrag]

I just change the VIN to the file, save as... a new name.
Then write entire. It has worked very good for me, it's faster than a few failed attempts with VIN/Tunerlock

If a write entire is not changing your VIN, something is wrong. It overwrites everything (including ADN and father's name of the PCM ), so it should work 100% sure.

[Bill@HPTuners]

I just change the VIN to the file, save as... a new name.
Then write entire. It has worked very good for me, it's faster than a few failed attempts with VIN/Tunerlock

If a write entire is not changing your VIN, something is wrong. It overwrites everything (including ADN and father's name of the PCM ), so it should work 100% sure.

Yeah I had tried that on a GTP I was working on and the vin didn't take, come to find out had to use the vin change window & the on/off procedure to get it to properly take. As stated it really varies from application to application.

Try entering a vin into a 97/98 Corvette, firebird, camaro, 97 grand prix, any alloytech bosch pcm'd vehicle, etc. You can't. It varies from pcm to pcm.

[Engine_HP]

Guys when i did that (post number 1) on my 2002 c5z, it wored okay, but i have to turn OFF the security and that what might left the security indicator on

[Za3toor002]

Guys I had a problem after changing the VIN as post 1 and i couldn't write any solution??

[Keith@HPTuners]

Like the second post states, it depends on the application.

What vehicle are you working on?