P1102moderate severityPowertrain
MAF Sensor In Range But Lower Than Expected
on 2003 Lincoln Aviator 4.6L V8 DOHC · AWD
What this code means
The MAF sensor is providing a signal that is within the valid voltage range but consistently lower than the PCM expects for current conditions. This typically indicates reduced airflow detection.
Symptoms
- Check Engine Light
- Lean running condition
- Poor acceleration
- Rough idle
Common causes
- Dirty MAF sensor element
- Restricted air filter
- Intake air leak downstream of MAF
- MAF sensor degradation
Diagnostic steps
- Clean MAF sensor with approved cleaner
- Replace air filter
- Inspect intake for leaks
- Compare MAF readings to specifications
Repair notes
Clean MAF sensor. Replace air filter. Repair intake leaks.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1