P1120
Sistema
Powertrain (Engine)
Escáner necesario
Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

Throttle Position Sensor Out of Range

Understand P1120, common causes, and the right FOXWELL scanner to diagnose it.

TPS signal out of expected range at closed or open throttle.

Síntomas habituales

  • Limp mode
  • Hesitation
  • Idle surge

Causas típicas

  • Failed throttle position sensor
  • Throttle body wear
  • Wiring at throttle actuator
  • Needs throttle relearn

¿Qué escáner necesita?

Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

Use datos en vivo y freeze frame antes de cambiar piezas. Códigos ABS, SRS y U suelen requerir un escáner de todos los sistemas.

Consejos de diagnóstico

  • Registre el freeze frame cuando se active el código
  • Borre el código solo tras corregir la causa
  • Revise códigos pendientes relacionados
  • Verifique que la batería esté por encima de 12,4 V antes de sospechar sensores

Escáneres FOXWELL recomendados

Preguntas frecuentes

Can I diagnose P1120 with a basic code reader?
P1120 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with P1120?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.