Well I tried my hand at copying the regal tune over the gtp tune the best I could. I used the compare file and copy/pasted any differences but there were a few that were questionable as they went half green, half pink where as a proper copy goes all pink. I loaded it and it fired up but scanning it showed before 30 secs it went rich at around -17 fuel trims so I guess the tune didn't work. On a side note I have a 3" abs pipe from the throttlebody to an open cone filter in the side of the body for cold air. Could this be too small and not let enough air in for the amount of commanded fuel cause it to run rich? I can't remember if I have done a scan with an open throttlebody or not to see if the numbers are the same or not.
