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Home >> Lincoln >> 2012 >> MKZ Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 37 (Engine Controls (Except Diesel & Hybrid) - Powertrain DTC Descriptions - DTC P0571 - P1674) >> DTC P1548: Engine Air Filter Restriction

DTC P1548: Engine Air Filter Restriction

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P1548 - ENGINE AIR FILTER RESTRICTION

Description:  This DTC sets when the airflow is out of range at various engine speeds and during wide open throttle (WOT) operation when compared to the calibrated value.
Possible Causes: 
  • Intake air restriction
  • Clogged air filter
Diagnostic Aids:  If this DTC sets, inspect the intake air system and replace the air filter if no obstructions are found. Refer to the appropriate Intake Air Distribution and Filtering article for air filter replacement.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.