Ford 6.0L 2003-2004 F-Super & Excursion lack of power condition, surge, or turbocharger flutter after performing Field Service

OC Diesel discovered that some Ford 6.0L 2003-2004 F-Super Duty and 6.0L Excursion vehicles built on or before 9/29/2003 may experience a P006A, P132B, P0401 or P0402 diagnostic trouble codes (DTC) with a lack of power condition, surge, or turbocharger flutter after performing Field Service Action or after recalibrating the vehicle with the inferred Exhaust Pressure (EP) strategy. This inferred EP strategy does not use the Exhaust Back Pressure (EBP) sensors input, although the EBP sensor must remain connected to the tube and the wiring harness.

OC Diesel service technicians use procedures to repair troubles after receiving the inferred EP calibration update. There are a variety of reasons why a customer could experience a lack of  power condition with the inferred EP calibration.

These can include causes a person may not directly see as impacting the condition or codes set. For example; a Mass Air Flow (MAF) / Manifold Air Pressure (MAP) code can be related to a MAF sensor or a MAP sensor problem. However, those codes can be caused by other items such as: intake leak, exhaust leak, Exhaust Gas Recirculation (EGR) problems, and aftermarket modifications.

 

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