Flash: Powertrain Diagnostic And System Enhancements
This bulletin involves reprogramming the Engine Control Module (ECM) with the latest available software.
A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs).
? P0171 - Fuel System 1/1 Lean
? P050D - Cold Start Rough Idle
