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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2790 (Engine Controls - Powertrain DTC Charts & Descriptions - DTC P0600 Through DTC P164A - (Except Diesel & Hybrid)) >> DTC P1121: Throttle Position Sensor A Inconsistent With MAF/Map Sensor

DTC P1121: Throttle Position Sensor A Inconsistent With MAF/Map Sensor

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P1121 - THROTTLE POSITION SENSOR A INCONSISTENT WITH MAF/MAP SENSOR

Description:  This DTC sets when the powertrain control module (PCM) detects an air leak that exceeds a calibrated limit for greater than 5 seconds. If the airflow entering the engine exceeds the airflow through the throttle, a leak is detected and this diagnostic fails.
Possible Causes: 
  • Unmetered air leaks between throttle body and intake valves
  • Air leaks at the intake manifold
  • Positive crankcase ventilation (PCV) system is leaking or the PCV valve is stuck open
Diagnostic Aids:  Verify the integrity of the PCV system. Refer to POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM for system information.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST HG .
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