• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

04+ pcm's

04whitegtp

04whitegtp

New member
Has anyone made a duplicate pcm? Im about to licence another 04 pcm and it would be nice if i could just make copies so all my cars use the same credit. I have access to tech2 and all gm software (dad is retired powertrain engineer)

Sent from my SM-N920P using Tapatalk
 
Last edited:


will the thing actually run though? The BCM *should* have a stroke...


edit: NVM, this would work, just change it back after editing. lol been a long two days with no sleep :)
 
I don't think your questions actually got answered. In order to change the Vin on a PCM, you have to unlock that PCM in HPTuners (for 2 credits). I have tried to change a vin without unlocking a PCM before and it never wanted to write.

It sounds like you have more than one 04-05 Grand Prix?

If that's the case, the best thing to do is unlock the year/model for 6 credits right off the bat when you get HPT. Then you can freely tune any 04 Grand Prix PCM for your needs.
 


not sure, that might be the osid # with a different name? i dont own hp. dont use it either, but i know you can dr the vin to work.
 
If I was to do the year model with 6 credits, what does that allow me to do? Any 04 pcm? Would ones from N/A cars work?

Sent from my SM-N920P using Tapatalk
 


I feel like i would just collect pcms from the yards, can i write a supercharged (tune.hpt) to any? I believe with the tech 2 i could change 05 pcms to my 04 vin.

Sent from my SM-N920P using Tapatalk
 
it might work. pricey way to go about things tho.

if you have a tech 2, change the vin in a jy pcm to your vin, then read the pcm and try to edit it. if you can find a pcm from the same year car as yours with the same engine you got a better shot of the osid # matching. theres a few per year it seems.
 
Well both cars are comp g's, and i have a spare zzp pcm i used to tune laying around as my test. Are the pcms that different just because of tapshift?

Sent from my SM-N920P using Tapatalk
 
You must log in or register to reply here.
Back
Top