Not really sure about whether it needs to be done, but there should be a fuse you pul and leave out for a minute or so (actually more like 30s) to reset your ECU.
I always, after every mod folks recommend to reset the ECU. One method is to disconnect the negative battery terminal for a half-hour, or locate the ECU fuse and remove it for a duration (prob half-hour). I usually do the battery, but the drawback is:
1. You lose your radio presets
2. If you have an adaptive automatic transmission, sometimes it has to relearn your driving style.
ECU Fuse: Drawback: finding the right one and pulling it.
yes it has a mind of it's own. the TCU is more in charge of the transmission.
I need a schematic, link, data, etc. Shouldn't the ECU be the "Boss" over all the control "Departments" and the TCU be the "Supervisor" over the transmission. The boss gets busted for fraud and inefficiency. Turns out the TCU was in on the job. Fire the boss, and the TCU goes down with it.