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Features, Engine management system – Polaris IQ Turbo Dragon User Manual

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FEATURES

Engine Management System

The engine management system is programmed to alert the rider when

coolant temperatures reach higher-than-normal levels. The system

responds by taking the following sequential steps to alert the rider.
1. The High Temperature Indicator on the MFD will flash.
To cool the engine, drive the snowmobile into soft snow so that it comes

into contact with the heat exchangers on the snowmobile. Alternately,

you can stop the snowmobile and pack snow or ice onto the heat

exchangers to bring the temperature of the engine down.
2. The High Temperature Indicator on the MFD will flash and the

engine will misfire or "stutter".

If you do not notice the flashing indicator on the MFD or do not suffi-

ciently cool the snowmobile, the engine will misfire to alert you to look

at the MFD and take action. Again, driving the snowmobile into soft

snow or packing snow onto the heat exchangers should cool the engine.
3. The engine will stop.
If the engine reaches an extreme temperature where damage becomes

possible, the system will stop the engine. This condition will occur only

after the system has taken both previous steps to alert the rider to the

extreme engine temperature. If the engine stops and you attempt to

restart it while before it has cooled sufficiently, the engine will restart

and run for two seconds but will immediately stop again.
The engine management system will also turn the engine off if the

engine reaches an extreme temperature while idling.