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drive by wire what the hell is it

1K views 2 replies 3 participants last post by  TopGhia 
#1 ·
all i wanna know is what the hell drive by wire is from what i understand there is no accelerator cable but how does it work.
 
#2 ·
Correct, no accelerator cable.

Sensor (potentiometer?) at the accel pedal feeds input to the ECU which does it's usual thing and also operates an electronically controlled throttle body. It's no longer a direct relationship between what your right foot does and how far the throttle opens up - the ECU is programmed to interpret your pedal input then open the throttle the optimum amount for what it predicts you want to happen.
 
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