P0165 OBD II Trouble Code O2 Sensor Circuit Slow Response (Bank 2 Sensor 3)

Symptoms of P0165 OBD II Trouble Code

  • A lack of general engine performance
  • Diminished fuel efficiency
  • Other related diagnostic trouble codes may also be stored
  • Service engine soon lamp illumination

Common Causes of P0165 OBD II Trouble Code

  • Defective O2 sensor/s
  • Burnt, broken, or disconnected wiring and/or connectors
  • Clogged catalytic converter
  • Engine exhaust leaks

Severity of P0165 OBD II Trouble Code

Since a P0165 code means that the post catalytic converter O2 sensor has remained slow or unresponsive, it should be addressed at your earliest convenience.