P1103
MAF Sensor In Range But Higher Than Expected
2002-2005 Ford Explorer 4.6L V8 🇨🇦
Moderate SeverityPowertrain
Description
The MAF sensor signal is within the valid voltage range but consistently higher than expected by the PCM. This suggests the sensor is over-reporting airflow.
Symptoms
- Check Engine Light
- Rich running condition
- Black exhaust smoke
- Poor fuel economy
- Rough idle
Common Causes
- Contaminated MAF sensor
- Faulty MAF sensor
- Air filter housing not sealed properly
- PCM calibration issue
Diagnostic Steps
- Clean MAF sensor
- Verify air filter housing is sealed
- Check for TSBs related to PCM calibration
- Compare readings to specifications
Repair Notes
Clean or replace MAF sensor. Ensure intake system is properly sealed.
Related Codes
P1100MAF Sensor IntermittentP1100MAF Sensor IntermittentP1100MAF Sensor IntermittentP1100BARO Sensor CircuitP1100MAP Sensor Circuit MalfunctionP1100MAP Sensor Circuit MalfunctionP1100MAP Sensor Circuit MalfunctionP1100BARO Sensor CircuitP1100Starter Switch Circuit MalfunctionP1100Mass Air Flow Sensor Circuit IntermittentP1100BARO Sensor CircuitP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1101MAF Sensor Out of Self-Test RangeP1101Neutral Position Switch Circuit MalfunctionP1101MAF Sensor Out of Self-Test RangeP1101MAF Sensor Out of Self-Test RangeP1101MAF Sensor Out of Self-Test RangeP1101Intake Airflow System PerformanceP1101Intake Airflow System PerformanceP1102MAF Sensor In Range But Lower Than ExpectedP1102HO2S Heater Resistance Bank 1 Sensor 1P1102HO2S Heater Resistance Bank 1 Sensor 1P1102HO2S Heater Resistance Bank 1 Sensor 1P1102HO2S Heater Resistance Bank 1 Sensor 1P1102HO2S Heater Resistance Bank 1 Sensor 1P1102MAF Sensor In Range But Lower Than ExpectedP1102MAF Sensor In Range But Lower Than Expected
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
P1103 on Other Vehicles
Common Questions
What does code P1103 mean on a 2002-2005 Ford Explorer?
P1103 stands for "MAF Sensor In Range But Higher Than Expected". The MAF sensor signal is within the valid voltage range but consistently higher than expected by the PCM. This suggests the sensor is over-reporting airflow.
What are the symptoms of P1103 on a Ford Explorer?
Common symptoms of P1103 include: Check Engine Light, Rich running condition, Black exhaust smoke, Poor fuel economy, Rough idle.
What causes P1103 on a 2002-2005 Ford Explorer?
Common causes of P1103 include: Contaminated MAF sensor, Faulty MAF sensor, Air filter housing not sealed properly, PCM calibration issue.