The throttle position sensor is on the throttle body. That's the part of the engine that controls the amount of air allowed into the engine.
To find the throttle body, follow the air intake routing toward the engine. The throttle body is the part that sits on the intake manifold.
To find the throttle position sensor, follow the throttle cable to the throttle body. If it helps, have someone press down and release the throttle pedal while you're looking for the throttle body/position sensor. The throttle cable causes a shaft to turn, that's the part that controls the air coming into the engine. The throttle position sensor is connected to that shaft.
Trouble code P0120 means: Throttle position or pedal position sensor/switch circuit malfunction
your question makes no sense. but i think the answer is internal combustion There is a steel cable going from the accelerator pedal to the throttle body, and on the throttle body there is a Throttle Position Sensor which tells the computer how hard you are pushing.
Generally speaking the throttle position sensor is on the throttle body.
Look under the hood, at the throttle body assembly. You should see the accelerator cable attached to a pulley like assembly and when the pedal is depressed, the cable should move the throttle valve. The throttle position sensor is attached to the shaft that the throttle cable is moving. It will be the part with the electrical connections.
My friend is having the same problem. After some research, I've come down to it being related to the idle switch on the pedal assembly. The switch is there because your throttle is electronically controlled and the switch is a canceller. If you release the throttle but the throttle position sensor is messed up and saying that there is a throttle input the truck will try to keep revving. So the idle switch cancels any signal that is being put out by the throttle position sensor. If the Idle switch sticks, it will cancel out your input into the throttle pedal. So when you want to go, the idle switch thinks that your still in idle mode. In a nut shell, people are saying that you need to replace the throttle pedal assembly. It's relatively easy, kind of expensive though. About $220.
Throttle position or pedal position sensor/switch circuit, low input
Trouble code P2125 means: Throttle/Pedal Position Sensor/Switch ""E"" Circuit I would replace the throttle position sensor
Trouble code P0122 means:Throttle position or pedal position sensor/switch circuit,low input
There is a throttle position sensor mounted to the throttle body. That's the place where the air intake valve sits near the top of the engine. Look for the throttle butterfly valve; on the end of the butterfly valve shaft should be a little sensor with wires connected; that's the throttle position sensor.
P0121 - Throttle Pedal Sensor Switch "A" Circuit Range/Performance. Most common fix is to replace the Throttle position sensor.
When Throttle Position sensor is bad when you step on pedal and it does not move, engine light is on!
Trouble code P2122 means: Throttle/pedal position sensor/switch "D" circuit low input