• The fault code P0120 indicates an issue with the circuit that controls the throttle or pedal position sensor/switch 'A'. This malfunction may cause poor engine performance or stalling.

Possible Symptoms:

  • Reduced engine power or acceleration

  • Illuminated check engine light

  • Stalling or difficulty starting the engine

  • Poor engine performance or rough idling

Possible Causes:

  • A faulty throttle/pedal position sensor or switch 'A'

  • Wiring or connections in the circuit may be damaged or faulty

  • Loose or corroded electrical connections

  • Failed engine control module (ECM)

Related Parts:

  • Throttle Position Sensor: Throttle position sensor generally denotes the position of the accelerator pedal. Problems lead to poor acceleration

Possible Solutions:

  • Replace the throttle/pedal position sensor or switch 'A'

  • Check and repair any damaged wiring or connections

  • Clean any loose or corroded electrical connections

  • Replace the engine control module (ECM) if necessary