How do I solve p0121 on my 2002 Toyota Camry?

Question

What part or parts do i need to get to get the code corrected?

Answer 1

P0121 Throttle/pedal position / switch "A" circtuit range performance

P0120 Throttle /pedal postion /switch  "A" circuit malfunction

This is the throttle postion sensor that is mounted on the throttle body,Even though the trouble code is for the accelerator pedal , it is the TPS that gives most problem