P0158


2017-10-10


Description:

  • An excessively high voltage detected from the oxygen sensor

Possible Symptoms:

  • The vehicle will not start if the fuel is frozen from extreme cold, or if there is water in the fuel

  • Car dies while stopped

Possible Causes:

  • Faulty Rear Heated Oxygen Sensor Bank 2

  • Rear Heated Oxygen Sensor Bank 2 harness is open or shorted

  • Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection

  • Inappropriate fuel pressure

  • Faulty fuel injectors

  • Intake air leaks may be faulty

  • Exhaust gas 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:

  • Replacing the Front Heated Oxygen Sensor Bank 2 usually takes care of the problem

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