1807517

Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming of the Powertrain Control Module (PCM) with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following DTCs: P000B - Bank 1 Camshaft 2 Position Slow Response. P0016 - Crankshaft/Camshaft Timing Misalignment - Bank 1 Sensor 1. P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P0441 - EVAP Purge System Performance. P0455 - EVAP System Large Leak. P2610 - PCM Internal Engine Off Timer Performance. P0456 - EVAP System Small Leak. P2299 - Brake Pedal Position/Accelerator Pedal Position Incompatible. Customers may also notice the following condition(s): Brief engine idle fluctuation while in hot ambient temperatures. A slight hesitation during light pedal application after engine cold start. Driveline noises. Engine stumble/hesitation on a very hard pedal acceleration from a dead stop. Transmission enhancements during low-speed braking turning maneuvers. False detonation (spark knock) detected during a wide-open throttle (LA Challenger Sales Codes ESH with DEC only). In addition, the following software enhancements are available: Reduce bumps felt on light to medium decal braking and coming to a stop. Launch spark improvement change from 35 MPH to 10 MPH. Reverse lock out speed change from 10 MPH to 3 MPH (Sales Code DEC only). Torque security calibration changes to desensitize brake throttle override entry conditions. Calibration changes to address engine speed undershoot/overshoot during clutch disengagement when coming to a stop (Sales Code DEC only). Start fuel and transient fuel calibration change for improved drivability robustness. Purge calibration changes for a more robust purge volume result at altitude. Individual Cylinder Fuel Control (ICFC) calibration changes for improved fueling offset accuracy.