P1104 – MAF Sensor Intermittent (BMW)

Description

P1104 BMW indicates intermittent signal loss from the MAF sensor.

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Symptoms

  • Hesitation
  • Surging
  • Rough idle

Causes

  • Loose connector
  • Wiring break
  • Sensor failure

Diagnosis

  • Check connector fit
  • Inspect wiring
  • Test sensor stability

Repair

  • Repair wiring
  • Clean connector
  • Replace MAF