• The fault code P0145 indicates that there is a delay in the response of the oxygen sensor circuit in bank 1, sensor 3. This may cause the vehicle to consume more fuel than usual and cause issues with emissions control.

Possible Symptoms:

  • Increased fuel consumption

  • Illuminated check engine light

  • Failed emissions test

  • Poor engine performance

Possible Causes:

  • Faulty or contaminated oxygen sensor

  • Damaged or corroded wiring in the circuit

  • Loose or poor electrical connections

  • Failed engine control module (ECM)

Related Parts:

  • Oxygen Sensor: This is one of the parts that fails very commonly. It measures the amount of oxygen to ensure proper combustion. Problems in the Oxygen Sensor lead to poor fuel economy

Possible Solutions:

  • Replace the oxygen sensor

  • Check and repair any damaged wiring or connections

  • Tighten or clean any loose or corroded electrical connections

  • Replace the engine control module (ECM) if necessary