02NBMWS6

iTrader: (22)

I recently had a catback installed on our 05 CTS-V and was going to have it tuned to remove skip shift and torque management etc.. , but when my tuner linked the laptop to it, it came back with an error saying invalid VIN, and it would not pick the VIN # up. And therefore wouldnt let us proceed

As far as i know, it is the original PCM. what's going on here?

foff667

iTrader: (2)

If your tuner is using hptuners to read the file have him send it to me at support at hptuners dot com and I'll take a looksee.

wait4me

iTrader: (10)

Alot of ctsvs i have seen have not had a vin number in the original pcm. The only time i have seen the pcm with the vin is if the car had been in for warrenty work or updates.

02NBMWS6

iTrader: (22)

will do.

02NBMWS6

iTrader: (22)

well. whats the fix for this?

foff667

iTrader: (2)

If that is the case just have your local dealership flash in the newest update with your Vin number.