Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance
¿Qué significa esto?
Code P0121 means the TPS 'A' signal is outside the expected voltage range for the current engine conditions.
Aviso legal: Este código de diagnóstico forma parte del sistema OBD2 estándar y puede aplicarse a los modelos Peugeot 308 fabricados de 1996 a 2026. Sin embargo, tenga en cuenta que la presencia de este código específico depende de la configuración del motor de su vehículo, las opciones y el año de producción.
Causas comunes
Sensor de posición del acelerador (TPS) defectuoso
Cuerpo del acelerador sucio o defectuoso
Arnés de cableado dañado o roto
Conector eléctrico corroído o suelto
Síntomas a tener en cuenta
- La luz de Check Engine está encendida
- Aceleración deficiente o respuesta lenta
- RPM del motor fluctuante
- Titubeo o tropiezo al acelerar
- El vehículo entra en modo de potencia reducida
Cómo Diagnosticar
Soluciones Comunes
Replace the Throttle Position Sensor (TPS): If diagnostic testing confirms the TPS 'A' sensor itself is providing an erratic, out-of-range, or non-linear signal, replacement of the sensor is necessary. In some vehicles, the TPS is integrated into the throttle body and requires replacement of the entire throttle body assembly.
Replace the Accelerator Pedal Position (APP) Sensor: If diagnostics indicate the APP sensor 'A' is faulty, exhibiting an erratic or incorrect signal, replacement of the APP sensor assembly (which often includes the pedal) will resolve the issue.
Repair or Replace Damaged Wiring/Connectors: If the issue is traced to corroded, loose, or damaged wiring or pins within the TPS or APP sensor harness connectors, repairing the affected wiring or replacing the connector will restore proper circuit integrity.
Clean the Throttle Body: If excessive carbon buildup or debris is found to be impeding the smooth movement of the throttle plate, a thorough cleaning of the throttle body can resolve the issue by allowing the throttle plate to return to its proper closed position and move freely throughout its range, thus ensuring accurate TPS readings.