Had the air box mod done since that was the only thing not throwing me the dreaded p0171 code. Well the other day my luck caught up with me. It was about 35 degrees and wham the light comes on going 65mph. Go to autozone check the code and the infamous lean code. Went home put the bottom on the airbox bottom and CEL goes out. Did a search here regarding new calibration software and called the dealer with that number. Find out that number does not exist and that June 21, 2006 there was another calibration sent out. Had the dealer update the software and wow! the car feels re-born. Actually hit 12.5lbs and idling and not hesitating anymore in the cold. A whole lot more power was gained. It could be in my head but noticable gains in power. Heard this is a fix to all CAI issues, so we will see in the near future. Will put up new document number when I get the paper work.