LNF (Solstice GXP) - can you just use GMPP table settings as a tune?

[carcar123]

Hi, can you just use the main GMPP table settings and flash that tune to a stock LNF (Solstice GXP)? Are there any odd ball settings that could mess things up (I heard some of the later models had vacuum assist on brakes or something)? People say that if you go to the dealer for a GMPP it flashes a whole new OS (and things like launch control, etc.), but I'm talking just flashing a hpt file. I know if you get a flash at the dealer it's very specific to year, model, etc.

I realize you either have to install the 3 bar sensor, or change the MAP sensor settings (e.g. with 3 bar they're 65.89, -6.35; for stock 55.68, -1.70 I believe).

Here's an example GMPP file someone had posted (GMPP with stock MAP sensors):

Saturn Sky GMPP Tune w 25 bar sensor (not 3 bar).hpt

[TCSS07]

you don't just flash another tune to your ecm with a mismatched vin. you need to copy over the charts from said file to your ecm file.

[carcar123]

Thanks TC. I was wondering about that--that makes more sense.