DDE FAULT CODE: 28DE00 - EXHAUST GAS PRESSURE SENSOR BEFORE TURBINE, PLAUSIBILITY. After performing repairs where the engine harness was disconnected and reconnected at the differential pressure and the exhaust pressure sensor, the following fault is then stored in the DDE: 28DE00 - Exhaust gas pressure sensor before Turbine, plausibility: exhaust gas pressure in front of turbine dynamically not plausible