P1103 – MAF Sensor High Input (Ford)

Description

P1103 Ford indicates the MAF sensor signal is higher than expected.

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Symptoms

  • Rich running
  • High fuel consumption
  • Rough idle

Causes

  • Short to power
  • Faulty MAF
  • Airflow obstruction

Diagnosis

  • Check wiring for shorts
  • Test MAF voltage
  • Inspect intake

Repair

  • Repair wiring
  • Replace MAF