General: What is the need for throttle by wire?

[vinuneuro]

Can't the just use the signal from the throttle position sensor on the throttle body, in a traditional throttle setup, to carryout the functions of throttle-by-wire?

[AzNMpower32]

Yea, but wouldn't that mean the computer can't control the throttle, like for functions of DSC when it needs to cut throttle.

[vinuneuro]

Originally Posted by AzNMpower32

Yea, but wouldn't that mean the computer can't control the throttle, like for functions of DSC when it needs to cut throttle.

cut fuel, retard ignition

[JCL]

with corresponding emissions impacts. If you want to have throttle control, isn't the best way to engineer it in as a variable, instead of adjusting other things that have an indirect impact?