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2014 VOLKSWAGEN JETTA TDI
2.0L TDI I4•FWD•AUTOMATIC•diesel•CJAA•turbo
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor504Torque3208Fluid7DTC1001Battery1Maintenance0Recalls5
16487moderate severityPowertrain

Mass or Volume Air Flow Circuit High Input

on 2014 Volkswagen Jetta TDI 2.0L TDI I4 · FWD

What this code means

The MAF sensor is reporting airflow signal too high (OBD P0103). Wiring shorts or a faulty sensor are common causes.

Symptoms

  • Rich running condition
  • Rough idle
  • Reduced fuel economy

Common causes

  • Faulty MAF sensor
  • Short to voltage in wiring
  • Connector corrosion
  • Faulty ECM

Diagnostic steps

  1. Read live MAF airflow data
  2. Inspect MAF wiring for shorts
  3. Check connector for corrosion
  4. Test with known-good MAF sensor
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