P0167
System
Powertrain (Emissions)
Scanner som krävs
Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

O2 Sensor Circuit Slow Response (Bank 3 Sensor 1)

Understand P0167, common causes, and the right FOXWELL scanner to diagnose it.

Bank 3 upstream O2 sensor slow response — on some V8 and diesel platforms with three catalyst banks.

Vanliga symptom

  • Check engine light
  • Fuel trim fault on affected bank

Typiska orsaker

  • Aging O2 sensor
  • Exhaust leak
  • Oil fouling sensor
  • Heater circuit weak

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 P0167 with a basic code reader?
P0167 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 P0167?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.