I just bought an 04 M6 GTO. The previous owner claimed it was stock, which it appears to be part wise, but it would never make me do the 1-4 shift, so I knew there was something going on. I was finally able to pull the file tonight, and after looking at it, it looks like the 1-4 shift was shut off. I also noticed that the speed limiter was changed to 255mph. A couple other things I noticed:
IFR vs. KPA VAC table is slightly changed. Any reason why this table would be changed, even just the small amount that this one is?
The rev limiter's were changed. I'm an LS1 newbie, but is it ok to rev it this high? Is it still making power at that point?
Under Engine>Fuel control>PE - what are the changes in this area doing?
Why would the COT be disabled?
What about the changes in the timing tables? Is it safe to run these advanved like they are? The streets are wet here, but I tried a little WOT scan. I noticed 1* of kr, but it went away quickly. Any reason why these would be advanced over stock, on a stock car?
And, the table under spark retard that is changed...I don't understand why anyone would possibly change this amount...?
Also, the changes under Engine>TQ Manangement...I don't understand why this would be changed on an otherwise stock car.
One last thing...it looks like there is a 180* T-stat installed in the car, according to how the scanner reads, and how the fans are setup.
I'd appreciate the help, if you guys could take a guess as to why some of these things were changed, and how.
And, what should I do with all these changes? I'm not a big fan of starting out with a modified file, so should I import all the stock data and write a stock file?
The "first read" file is off my car. The other I downloaded from the HPT repository.
TIA!
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