Flash: 1.4L Drivability Improvements
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience one or more of the following symptoms and/or a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the Diagnostic Trouble Codes (DTCs) listed below:
2016 Dart
? Engine cranks as if it has no compression.
? Engine sounds like it is knocking at idle, noise goes away when off idle.
? P0141 - O2 Sensor 1/2 Heater Performance.
2015 Dart
? Engine cranks as if it has no compression.
? Engine sounds like it is knocking at idle, noise goes away when off idle.
? P0141 - O2 Sensor 1/2 Heater Performance.
? P1046 - Cylinder 1 Oil Supply Solenoid Valve Overcurrent.
? P1048 - Cylinder 2 Oil Supply Solenoid Valve Overcurrent.
? P104A - Cylinder 3 Oil Supply Solenoid Valve Overcurrent.
? P104C - Cylinder 4 Oil Supply Solenoid Valve Overcurrent.
? P1D73 - Active Grill Shutter (AGS) Performance.
? P113D - O2 Sensor 1/1 Slow Response.
? Engine bump sensation felt during moderate to heavy acceleration over 3500 RPM.
? P061A - Level 2 torque performance set.
? Engine difficult to restart after cold or warm soak periods.
? Intermittent high coolant temp warning lamp illumination when using cruise control.
Condition occurs in conjunction with the P061A DTC listed above.
? Poor A/C performance primarily during extended hot idle and/or low speed driving
conditions. Applies to vehicles built with 1234YF refrigerant sales code XFC.
? Cold start difficulty below -10C (14F) ambient temperatures. Engine cranks fast and
possibly does not start due to loss of crankshaft synchronization until key cycle is
performed. (Vehicles built on or after August 23, 2014 (MDH 0823XX) and on or
before June 16, 2015 (MDH 0615XX)).
2014 Dart
? P1128 - Closed Loop Fueling Not Achieved - Bank 1 Upstream.
? Engine cranks as
