Originally Posted by 02420X3
Question - in relation to coding, what does having the software updated, i.e. the Service Bulletin update to eliminate throttle lag, do? Does it update the CAFD? Does it flash the ECU firmware? Something different?
Cafd files only provide values or decisions to ECU firmware. SIB upgrade updates the ECU firmware itself, thus upgrade may have same or different set of values.
Throttle lag was updated by Varying the torque-speed characteristics. I'm sure it is implemented thru series of data points but not sure where that data reside.