P0121 GMC - where is the tps located

Question

when tested the code po121 throttle /pedal position sensor switch a circuit /range/performance came up. where is this located?

Answer 1

P0121 Throttle position (TP) sensor 1 performance cricuit / range perfromance

The TPS is part of the throttle body.,P0121 represent two type of problem that the TPS has, , its circuit, which would be its harness , or a short or even a open, or internal circuits.Range perfromance, this can alos set a P0121 this can be cause by a vacuum leak,such as intake manifold leak, or even coking of the throttle body.