Fault Detection

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Ford RV Cutaway, 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.

The PCM ignores an out-of-range high or low EP signal. If an out-of-range signal is detected, the EGR system closes and the PCM defaults the VGT to calculated reference values.

CAUTION: The PCM harness connectors must be properly seated and the connector latch properly attached to eliminate possible driveability concerns or a no-start condition. Installing PCM connectors on an angle may cause an improper connection, misdiagnosis, and damaged components. Install the connector until the lever pivots and seats itself. Apply light pressure to get the connector into position on the PCM and then fully seat the connector.

NOTE: Visually inspect the harness connectors for corrosion, damage, proper mating, and correct pin tension.

Fig 1: Exhaust Pressure (EP) Sensor Connector

Fig 2: Powertrain Control Module (PCM) Connectors