Originally Posted by
oledoc2u
throttle by wire systems uses the pedal to record the pressure your foot places on it, to convert that pressure into electronic signals to tell the throttle position sensor how much to open the butterfly in the throttle body. It is a complex system, in that all signals from various sensors are now sending information to the ecu, including the TPS, So when you push on the throttle, that signal, isn't sent in those first few milliseconds, causing a lag in time, and causes the momentary hesitation. Change to an instant signal, the lag goes away. It has to be in the programming because that is what the system is. A complex network of sensors sending info to the ecu. ...lol
Yeah bullshit. That's a lot of words to explain a quite simple system that as we all know is universal on any modern car, the drive by wire throttle.
The system uses pedal movement, not pressure, to open the throttle. Any movement of the pedal causes a corresponding movement of the throttle blade.
To say that there is movement of the pedal without movement of the throttle blade is simply not based on factual information. The SB simply opens the throttle more for a given pedal movement.
While the SB does open the throttle milliseconds more quickly, as you say, it is the throttle blade being more open for a given pedal input that creates a more "responsive" driving experience.
