With past cars, the ECU is slow to learn habits, good or bad. Just like with any "performance" mod, an ECU reset is suggested to allow the car to take full advantage of whatever part you just installed. I figure the new way I will be driving is a pretty big performance mod in its own right, and would rather speed things along than wait the X amount of drive cycles or miles before it starts behaving like I think it should.
My last car had a ECU fuse or (PCM Fuse) whatever you want to call it that protected it from whatever a fuse protects electrical components from. To reset the ECU, all you had to do was pull the fuse for a good 5 mins or so and all was reset. And you still had your clock and stations still happily programmed. All the good w/o the bad.
Ill have to pull the manual out tomorrow and check for myself. Im guessing every car has a fuse for the ECU/PCM, I was just wondering if anybody knew off hand.