TCII not changing VIN

**Playtoy_18** · 09-15-2013

I can't get TCII to change the VIN on a .cal i'm trying to load.
I've got it on a bench harness,it is reading and loading okay but it will not take a new vin.
I've changed it in TC,I've changed it in hex editor,i've changed it as a bin and as a cal.
I've changed it with winflash,i've changed it in HxD-i'm about to have a cow.

Not sure what is up with it,every time I change and reload it just comes back up on the vehicle info as the same V6 VIN.
Not even sure where it came from,must have been on the guy's pcm. I think I just labeled the OS number in the file and saved/programmed over.
Generally I don't care what VIN says,so must have kept the previous VIN but now I can't change it.

Does the serial info have anything to do with that?

**EagleMark** · 09-15-2013

Do you have both 12 volt and key on power to your bench setup?

**Caleditor** · 09-15-2013

OBD II Tuner does not change the VIN. It is done with WinFlash ONLY

**Playtoy_18** · 09-15-2013

Yes,I have key-on and 12v on my bench harness,though they run to a common feed.I used Winflash to change the VIN as well as attempting to change VIN manually (in tuner,HxD,TP) and nothing has worked. Everything was done using full flash as well.
I read it out using Efi to confirm and still not changed.
Not sure what's up,doublechecked and i'm updated on winflash and TCII.
I'm using an optima to power the bench harness,plenty of voltage and fully charged.

I'm going to try just programming a completely different .cal and see what happens.

**EagleMark** · 09-16-2013

But does your bench harness have a Key On switch as well as power? After programming the Key On switch needs to be turned off, while power is still on! Then the VIN change will be kept. If both powers are off after program? Then no go!

Then VIN has to have same amount of digits, can't be one short...

EDIT: I think there's something wrong with your .cal file as I flashed it in a PCM and tried to change VIN and it will not change, even one digit at end?