Polaris 600 IQ Widetrak - Manual (Page 38)

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FEATURES
Detonation Elimination Technology (DET)
The DET system prevents damage to the engine from detonation by
going into an engine protection mode whenever the DET system is
active. When excessive detonation is detected, the check engine light
will illuminate, flicker or flash momentarily..
You may notice decreased engine RPM and performance when DET is
activated, but in most cases DET activation is temporary, and the timing
will return to normal automatically.
If severe detonation occurs, the check engine light will begin to flash.
The engine will enter a limp home mode (and RPM will be limited to
6500 RPM) and stay in this mode until the engine is shut down and
restarted.
The most likely causes of severe detonation are shown in the table
below. Refer to the table for troubleshooting information.
DET Troubleshooting
Check Engine Light Status Indicates
Solid or Flickering Detonation detected
Flashing Severe detonation detected, RPM will
be limited
Cause of DET Activation Solution
Poor quality fuel Replace with higher quality fuel
Incorrect ethanol/non-ethanol fuel
resistor installed
Verify correct fuel resistor for fuel type in
tank
Low fuel/no fuel in tank Refuel with recommended fuel
Water in fuel Replace with recommended fuel
Plugged fuel filter See your Polaris dealer for service
Alcohol-based fuel additive used
with Ethanol fuel
Do not add de-icers or additives that
contain any form of alcohol while using
up to 10% ethanol fuel
Improper engine modifications Do not modify the engine