P0145
System
Powertrain (Emissions)
Scanner som krävs
Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)

Understand P0145, common causes, and the right FOXWELL scanner to diagnose it.

Bank 1 sensor 3 responding too slowly — aging sensor or exhaust leak.

Vanliga symptom

  • Check engine light
  • Poor fuel trim

Typiska orsaker

  • Aging O2 sensor
  • Exhaust leak
  • Contaminated sensor tip
  • Heater not reaching operating temp

Vilken scanner behöver du?

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

Använd live-data och freeze frame innan du byter delar. ABS-, SRS- och U-koder kräver oftast en fullsystems-scanner.

Diagnostiktips

  • Spara freeze frame när koden först sätts
  • Rensa koden först efter att orsaken är åtgärdad
  • Kontrollera relaterade väntande koder
  • Verifiera batterispänning över 12,4 V innan du misstänker sensorer

Rekommenderade FOXWELL-scannrar

Vanliga frågor

Can I diagnose P0145 with a basic code reader?
P0145 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 P0145?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.