DTC P0068: - Manifold Absolute Pressure (Map)/Mass Air Flow (MAF) - Throttle Position Correlation
DTC 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 mass air flow 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: |
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| Diagnostic Aids: | Diagnose any MAF or TP circuit DTCs first. 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 |
| Ranger | - | GO to Pinpoint Test DH . | GO to Pinpoint Test DH . |
| All others | - | GO to Pinpoint Test DV . | GO to Pinpoint Test DV . |