P0144
Sistema
Powertrain (Fuel/Air)
Scanner richiesto
Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)

Understand P0144, common causes, and the right FOXWELL scanner to diagnose it.

Third O2 sensor (where equipped) circuit high — some V engines use multiple upstream sensors.

Sintomi comuni

  • Check engine light
  • Fuel trim issues

Cause tipiche

  • Failed O2 sensor
  • Open circuit
  • Exhaust leak affecting sensor

Quale scanner ti serve?

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

Usa dati live e freeze frame prima di sostituire componenti. I codici ABS, SRS e U richiedono spesso uno scanner mult sistema.

Consigli diagnostici

  • Registra il freeze frame quando il codice compare la prima volta
  • Cancella il codice solo dopo aver risolto la causa
  • Controlla i codici pending correlati
  • Verifica che la batteria sia sopra 12,4 V prima di sospettare un sensore

Scanner FOXWELL consigliati

Domande frequenti

Can I diagnose P0144 with a basic code reader?
P0144 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 P0144?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.