The trouble code #P1120 means:Throttle motor position sensor 1-Circuit malfunction Major auto parts chain told me my TSP (Throttle position sensor) was bad due to the Check Engine Llight (CEL) being lit up - a P1120 DTC.
$40 and 10 minutes to replace - ((_#*&$ light came right back. A few days ago, after doing some more reading & investigating of my own, I bought a $4 can of throttle body spray cleaner - used 1/2 the can on my 98 Sable - voila! CEL is gone again! Since this sensor is located at the top of the engine, it is very likely you will be able to replace it yourself.
Ask at auto parts store to see a diagram of the part's location. The throttle position sensor, TPS, is mounted on the front of the throttle body with 2 screws, and has a 3 wire connector going into it.
The throttle body is the metal unit the air filter housing connects to on the left-side, and also has the gas pedal cables going into it.
Simply disconnect the wire harness, remove the 2 screws (tighten a bit before unscrewing to break them loose) - reverse steps to install.
Note that Autozone.com has detailed testing procedures that appear easy enough to confirm if the TPS requires replacement. See "Related Links" below. It is attached with 2 screws to the front of the throttle-body - top side of the engine. Rather small with a 2 wire connector going to it.
Easiest part to access where the air duct attaches to the throttle body. I believe the voltage is supposed to be 0.5 closed and 5.0 open once that is obtained use a OBD scan tool to clear the code or disconnect the battery long enough to reset it however if you disconnect the battery it will take 40 to 100 miles of travel on the road to pick up all the sensors again and this can sometimes be a head ache TPS IS THROTTLE POSITION SENSOR
TPS IS THROTTLE POSITION SENSOR
This may actually be referring to the Throttle Position Sensor...(?)See "Related Questions" below
Trouble code P2125 means: Throttle/Pedal Position Sensor/Switch ""E"" Circuit I would replace the throttle position sensor
The throttle position sensor is in the throttle body.
The function of a throttle position sensor is to monitor the position of the throttle in an internal combustion engine.
Trouble code P0340 means:Camshaft position sensor circuit malfunction
Trouble code P1121 means: Throttle Position Sensor A Inconsistent With MAF/MAP Sensor
The throttle position sensor is located on the throttle body at the end of the throttle shaft.
The throttle position sensor is located on the throttle plate.
The throttle position sensor is on the throttle body.
The throttle position sensor is on the throttle body, opposite of where the cables attach.
Generally speaking the throttle position sensor is on the throttle body.