Below is an example of how the torque control works on a 2008 Subaru STI. The throttle control works identical on BRZ vehicles as well.
For a given Accel pedal position all of the below maps are looked up to finally end up at a desired boost and throttle plate angle. Based on 70% accel pedal at 3200RPM while in S mode. You will see that the target boost is quite low and the throttle angle is also fairly small.
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