• The fault code P0104 indicates that there is an intermittent issue with the circuit that controls the mass or volume air flow sensor. This may cause the engine to run poorly or not start at all.

Possible Symptoms:

  • Illuminated check engine light

  • Engine runs poorly or not at all

  • Rough idle or stalling

  • Reduced engine power or acceleration

Possible Causes:

  • Faulty mass or volume air flow sensor

  • Failed wiring or connections in the circuit

  • Loose or corroded electrical connections

  • Failed engine control module (ECM)

Related Parts:

  • Mass Air Flow Sensor: A mass (air) flow sensor (MAF) measures the amount of air entering the engine to ensure proper combustion. This car's malfunctioning MAF sensor will lead to poor fuel economy and performance

Possible Solutions:

  • Replace the mass or volume air flow 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