P1121 - Throttle Position Sensor A Inconsistent With MAF/Map Sensor

WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2014 Lincoln Navigator, 2014 Lincoln MKZ, 2014 Lincoln MKX, 2014 Lincoln MKT, and 2014 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.

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

Description: This DTC sets when the 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
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: POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM .