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2012 FORD EXPLORER

2.0L I4 EcoBoostAWDAUTOMATICgasturbo
7 active safety recalls on this vehicle — view recalls
Repairs0Labor511Torque3918Fluid9DTC949Battery1Maintenance0Recalls7
P1100moderate severityPowertrain

MAF Sensor Intermittent

on 2012 Ford Explorer 2.0L I4 EcoBoost · AWD

What this code means

The Mass Air Flow sensor signal is intermittent. The PCM has detected an erratic or fluctuating signal from the MAF sensor that drops in and out. This can cause inconsistent air/fuel mixture calculations.

Symptoms

  • Check Engine Light
  • Intermittent rough idle
  • Hesitation on acceleration
  • Stalling
  • Erratic fuel economy

Common causes

  • Loose MAF sensor connector
  • Damaged MAF sensor wiring
  • Dirty MAF sensor element
  • Cracked air intake tube allowing unmetered air
  • Failing MAF sensor

Diagnostic steps

  1. Inspect MAF sensor connector for looseness or corrosion
  2. Wiggle test MAF wiring while monitoring live data
  3. Inspect air intake tube for cracks or loose clamps
  4. Clean MAF sensor with MAF-specific cleaner
  5. Monitor MAF sensor readings on scan tool for erratic behavior

Repair notes

Clean MAF sensor first. If problem persists, inspect wiring and connectors. Replace MAF sensor if faulty.

Other Powertrain codes on this vehicle

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