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TuningBot DTC Database · v4.38.5

P0102 Mass or Volume Air Flow Circuit low Input

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

P · PowertrainEngineOBD2

What P0102 means

P0102
Mass or Volume Air Flow Circuit low Input Generic · engine Data confidence 90%

The control module detected that the signal in the Mass or Volume Air Flow circuit stayed below the expected operating range.

Symptoms

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

Possible causes

  • Wiring short to earth
  • 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 P0102

P

Powertrain: engine, transmission and driveline systems.

0

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

102

Specific fault index within the subsystem.

Frequently asked questions about P0102

What does P0102 mean?

Mass or Volume Air Flow Circuit low Input. The control module detected that the signal in the Mass or Volume Air Flow circuit stayed below the expected operating range.

Is P0102 generic or manufacturer-specific?

P0102 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0102 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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