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

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

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

Description:	The powertrain control module (PCM) monitors a vehicle operation rationality check by comparing sensed throttle position to MAP and MAF readings. If 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, the test fails and a DTC is stored in continuous memory.
Possible Causes:	Air leak between MAF sensor and throttle body TP sensor not seated properly Damaged TP sensor Damaged MAF sensor Damaged MAP sensor
Diagnostic Aids:	Drive the vehicle and exercise the throttle and the TP sensor in all gears. A TP PID less than 4.82% (0.24 volt) with a LOAD PID greater than 55%, or a TP PID greater than 49.05% (2.44 volts) with a LOAD PID less than 30% indicates a concern is present.
Application		Key On Engine Off	Key On Engine Running	Continuous Memory
All		-	-	refer to PINPOINT TEST DV .