Abstract: Prognostically warning of damper damage in a machine system includes monitoring a machine operating parameter linked with torsional loads on a crankshaft, and a temperature parameter. The prognostic warning strategy also includes populating an operating history of a machine system based on the monitored parameters, calculating a damper damage term based on the operating history, and triggering a damper damage warning where the damper damage term exceeds a threshold.

Abstract: A method of operating an engine is provided. The engine may include a combustion chamber and a working member positioned adjacent the combustion chamber. The method may include providing a source of fuel for the engine. The method may also include starting the engine producing power by combusting fuel in the combustion chamber to drive the working member. Additionally, the method may include selectively controlling delivery of the fuel to the combustion chamber at least partially as a function of an air temperature in response to achieving at least one predetermined condition involving the air temperature. The air temperature may be at least one of an ambient air temperature and an intake air temperature.