[gnlw]

I've read that the ECU adjusts based upon a person's driving style. How exactly does it adjust? Does it only adjust the air-fuel mixture? Does it also adjust the ignition timing? Does it only remember the past copule of hundred miles, or does adjust based upon all cumulative data input from day one? Does it adjust the transmission's shifting characterisitcs? (I.E shift points and how hard it shifts) How does one's driving style really affect the adjustments? Will driving the truck hard mean that the ECU will then calibrate to generate the most horsepower and torque when the truck is driven hard? Does resetting the ECU after a mod really accomplish anything in the long run, or will the results be the same without resetting after a few hundred miles anyway? Sorry for all the questions, but the workings of the ECU are a mystery to me. Thanks in advance for any replies.