14466 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPROGRAM THE ECM (ENGINE CONTROL MODULE) ON
CERTAIN TRUCKS EQUIPPED WITH THE 6.6L DURAMAX DIESEL ENGINE (RPO LML). IF A BRAKING EVENT IS IMMEDIATELY FOLLOWED BY AN AGGRESSIVE ATTEMPT TO ACCELERATE ON SOME OF THESE VEHICLES, ESPECIALLY WHEN DRIVING WITH ONE FOOT ON THE BRAKE AND ONE FOOT ON THE THROTTLE, THE CUSTOMER MAY EXPERIENCE UP TO A 5 SECOND LAG IN ACCELERATION PERFORMANCE DUE TO THE ENHANCED ELECTRONIC PEDAL OVERRIDE BEING ACTIVATED (“EEPO INTERVENTION”) AND A SUBSEQUENT REDUCED POWER MODE. EEPO INTERVENTION IS NORMAL, BUT IN THIS VEHICLE, THE EEPO INTERVENTION MAY BE MORE FREQUENT THAN DESIRED DUE TO CERTAIN CALIBRATIONS. THE DEALER WILL REFLASH THE ENGINE CONTROL MODULE WITH A REVISED CALIBRATION AT THE NEXT SERVICE VISIT.
