2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 304Get this manual
Section 05 ENGINE MANAGEMENT (2-TEC) Subsection 03 (COMPONENT INSPECTION AND ADJUSTMENT)
This reset is very importantThe setting of the TPS will determine the basic parameters for all fuel mapping and several ECM calculations in idle speed control of the engineNOTE: Reset must be done each time the throttle position sensor (TPS) is loosened or removed or throttle body or ECM is replacedCAUTION: An improperly set TPS may lead to poor engine performanceUse the vehicle communication kit (VCK) with the B.U.D.Ssoftware to perform this adjustmentUnscrew idle speed screw until the throttle body plate stop lever rest against its zero position stopper screw (capped screw)If necessary, loosen the throttle cableOpen throttle approximately one quarter then quickly releaseRepeattimes to settle throttle platePush the Reset button in the Setting section of B.U.D.SThe following message will be displayed: Make sure the idle screw is not in contact with the throttle stopperClick OK to continueFollow instructions and click OKAnother message will appear to ask you to perform ECU tracking shut down to save the changes into the ECU permanent memoryRemove the tether cord cap from the DESS post and wait until the message disappears before reinserting the tether cord capRe-power up the ECM by pushing the STARTRER button momentarilyThe throttle opening displayed in B.U.D.Sshould be 0.00 (0.1 maximum)If TPS is not within the allowed range while resetting the Closed Throttle, the ECM will generate fault code and will not accept the settingNow, the idle speed screw has to be adjustedTo do this, screw in the idle speed screw until B.U.D.Sthrottle opening displays value as per following tableENGINE TYPE 593 SDI VALUE AT SEA LEVEL 3.9 0.1 ABOVE 1800 (6000 ft) 4.9 0.1