VOLUNTARY EMISSION RECALL 06E17 SUPPLEMENT #1: CONTROL MODULE RECALIBRATION. CORROSION MAY EXIST AT THE ELECTRODE SURFACE ON THE EXHAUST PRESSURE (EP) SENSOR; FUEL DELIVERY TIMING DURING COLD WEATHER MAY NOT BE OPTIMAL; AND/OR EXHAUST GAS RECIRCULATION (EGR) SYSTEM OPERATION AT IDLE MAY NOT BE OPTIMAL. *TT