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Home/DTC Codes/Ford/Explorer/2002-2005 4.6L V8/P1100
P1100

MAF Sensor Intermittent

2002-2005 Ford Explorer 4.6L V8

Moderate SeverityPowertrain

Description

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.

Related Codes

P0100Mass Air Flow (MAF) CircuitP0102Mass Air Flow (MAF) Circuit Low InputP0103Mass Air Flow (MAF) Circuit High InputP1101MAF Sensor Out of Self-Test RangeP1101MAF Sensor Out of Self-Test RangeP1101MAF Sensor Out of Self-Test RangeP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Neutral Position Switch Circuit MalfunctionP1101MAF Sensor Out of Self-Test Range

Other Powertrain Codes

P1100 on Other Vehicles

Ford Aerostar

1990-1997 3.0L V6

Ford Aerostar

1990-1997 4.0L V6

Ford Bronco

1990-1996 4.9L I6 300

Ford Bronco

1990-1996 5.0L V8 302 Windsor

Ford Bronco

1990-1996 5.8L V8 351 Windsor

Ford Bronco

2021-2024 2.3L I4 EcoBoost

Ford Bronco

2021-2024 2.7L V6 EcoBoost

Ford Bronco Raptor

2022-2024 3.0L V6 EcoBoost

Common Questions

What does code P1100 mean on a 2002-2005 Ford Explorer?

P1100 stands for "MAF Sensor Intermittent". 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.

What are the symptoms of P1100 on a Ford Explorer?

Common symptoms of P1100 include: Check Engine Light, Intermittent rough idle, Hesitation on acceleration, Stalling, Erratic fuel economy.

What causes P1100 on a 2002-2005 Ford Explorer?

Common causes of P1100 include: Loose MAF sensor connector, Damaged MAF sensor wiring, Dirty MAF sensor element, Cracked air intake tube allowing unmetered air, Failing MAF sensor.

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