DTC P0068: Manifold Absolute Pressure (Map)/Mass Air Flow (MAF) - Throttle Position Correlation

P0068 - MANIFOLD ABSOLUTE PRESSURE (MAP)/MASS AIR FLOW (MAF) - THROTTLE POSITION CORRELATION

Description: The PCM monitors a vehicle operation rationality check by comparing sensed throttle position to mass airflow readings. This continuous memory DTC sets when during a key ON, engine running (KOER) self-test, the comparison of the throttle position (TP) sensor and MAF sensor readings are not consistent with the calibrated load values.
Possible Causes: Air leak between MAF sensor and throttle body. TP sensor not seated correctly Damaged MAF sensor Damaged TP sensor
Diagnostic Aids: Diagnose any MAF or TP DTCs first. For Fiesta, if the throttle plate is closed and the LOAD PID is greater than 35%, or with the TP_REL PID at 28% with the LOAD PID less than 30% indicates a concern is present. For all others, if the throttle plate is closed and the LOAD PID is greater than 55%, or with the throttle plate at wide open throttle (WOT) with the LOAD PID less than 30% indicates a concern is present.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST DV .