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Maybe this will help:
HEAT MANAGEMENT SYSTEM
The ESPFI systems on 2002 and later Touring and Softail series bikes also incorporate a sophisticated heat management system that operates in three-phases to keep things cool in extreme conditions.
Phase I: If the ECM detects engine temperature above approximately 300° F while moving or stationary it reduces the idle speed. A lower idle speed produces fewer combustion events per minute and that reduces engine heat.
Phase II: If the ECM detects an engine temperature that's still drifting higher while moving or stationary it richens the AFR. An increased amount of fuel in the air/fuel mixture has a cooling effect on the engine.
Phase III: If the ECM detects an engine temperature that's still drifting higher while moving or stationary it directs the fuel injectors to skip, (only when the bike is stationary) and not deliver fuel on every intake stroke. This limits the number of combustion events taking place, which produces less heat.
The 3-Phases just described function seamlessly, and the rider may not notice the transition from one phase to the next.
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Ed Y
2002 FLTRI
I yam what I yam.
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