2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 277Get this manual
Section 05 ENGINE MANAGEMENT (2-TEC) Subsection 01 (OVERVIEW)
High Muffler Temperature Warning Device
When the muffler temperature is getting to high, the ECM will extend the injection period temporarily, until the temperature of the muffler will decreaseIf the temperature still increases, the high temperature LED will be illuminated and further the ECM will limit the engine speed to maximum 5250 RPM
Power Distribution