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You can replace the entire throttle body assembly and it'll fix it, or you can try a sensor at a time. APPS, TPS then finally the motor. I say still check the linkage on the butterfly. Check for carbon build up as well. Wouldn't hurt to check the wires and plugs for corrosion, bad connection rips.
This is the first time ever hearing of this code and nothing matched in the diagnostic manual.
However, this may be caused by the Actuator that is controlled by the VSV not being opened. Not quite 100% sure on this tho.