P0041

2017-10-10

Description:

  • The fault code P0041 indicates that there is an issue with the signals coming from the oxygen sensors located after the catalytic converters on both sides of the engine. The signals from bank 1 sensor 2 and bank 2 sensor 2 have been swapped causing the engine control module to be unable to accurately monitor the emissions system.

Possible Symptoms:

  • Decreased fuel efficiency

  • Rough idle or stalling

  • Illuminated check engine light

  • Decreased engine power or acceleration

Possible Causes:

  • Faulty or damaged oxygen sensors

  • Swapped oxygen sensor wiring

  • Malfunctioning 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 faulty or damaged oxygen sensors

  • Correct oxygen sensor wiring to match manufacturer specifications

  • Replace the engine control module (ECM) if necessary

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