P1104: MAF Ground Malfunction

HighPowertrainAir Flow Sensors

What does P1104 mean?

P1104 is a diagnostic trouble code indicating "MAF Ground Malfunction". A component in the air flow sensors has been flagged as malfunctioning by the vehicle's ECU. This requires diagnosis to determine whether the part itself has failed or if there is a related wiring or control issue.

Common causes

  • Faulty air flow sensors component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

This is a significant issue that should be diagnosed and repaired soon. Avoid long trips or heavy driving until the problem is resolved. Continued driving may cause additional damage.

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Code P1104 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

P1103MAF Sensor In Range But Higher Than Expected
P1102MAF Sensor In Range But Lower Than Expected
P1106Dual Alternator Lower Fault/ Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage
P1101MAF Sensor Out Of Self Test Range./KOER Not Able To Complete KOER Aborted