• The fault code P0144 indicates that there is a high voltage reading in the circuit that controls the O2 sensor for bank 1, sensor 3. This may cause the engine to run inefficiently and contribute to higher emissions.

Possible Symptoms:

  • Illuminated check engine light

  • Poor engine performance

  • Increased emissions

  • Reduced fuel economy

Possible Causes:

  • Damaged O2 sensor or sensor circuit

  • Loose or corroded electrical connections

  • Failed engine control module (ECM)

  • Exhaust leaks

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 O2 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

  • Inspect and repair any exhaust leaks