I just emailed Rene at Upsolute, asking him about the throttle
calibration. Here's what he says:

> Roger most of the Bosch ECU equipped cars with drive-by-wire
> electronic pedal and throttle have this feature. when the car is turned
> to the accesory position the throttle body will work to esablish it's
> limits , this is a self calibration feature. Regards, Rene