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TuningBot DTC Database · v4.37.15

P0104 Mass or Volume Air flow Circuit Intermittent

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P0104 means

P0104
Mass or Volume Air flow Circuit Intermittent Generic · engine Data confidence 90%

The control module detected an unstable or intermittent signal in the Mass or Volume Air flow circuit.

Symptoms

  • MIL illuminated
  • Possible hesitation or poor throttle response
  • Possible incorrect fuel trim values

Possible causes

  • Wiring
  • poor connection
  • MAF/VAF sensor
  • ECM

Recommended checks

  • Compare measured air mass with expected values at idle and load
  • Inspect intake ducting for leaks after the sensor
  • Inspect wiring and connectors
  • Check fuel trim values for confirmation

Related and nearby codes

How to read P0104

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

104

Specific fault index within the subsystem.

Frequently asked questions about P0104

What does P0104 mean?

Mass or Volume Air flow Circuit Intermittent. The control module detected an unstable or intermittent signal in the Mass or Volume Air flow circuit.

Is P0104 generic or manufacturer-specific?

P0104 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0104 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

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