2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 280Get this manual
Section 05 ENGINE MANAGEMENT (2-TEC) Subsection 01 (OVERVIEW)
The engine RPM may be limited if some critical components failIn this case, releasing throttle and letting the engine returning to idle speed may allow normal operation to come backIf does not work, try removing and reinstalling the tether cord cap on DESS postThese performance-reduced modes allow the rider to go back home which would not be possible without this advanced systemRefer to the DIAGNOSTIC PROCEDURES for complete chartIf fault occurs and involves limp home mode operation, the engine management system will reduce engine RPM gradually to the proper level
Two separate windings receive input from the ECMEach winding provides high voltage to its corresponding spark plugThis ignition system allows spark plugs to spark independentlyCAUTION: Do not interchange spark plug cablesMatch reference (PTO or MAG printed on high tension cable yellow tag) with corresponding cylinder spark plugDouble ignition coil is located underneath air silencer
TRIGGER COIL