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FEATURES
Detonation Elimination Technology (D.E.T.)
Some Polaris snowmobiles are
equipped with a detonation sensor that
monitors the engine and responds to
detonation by automatically reducing
the engine timing. When activated, the
"DETONATION FLASH" indicator
(✪) will flash. The activated sensor
reduces engine detonation by retarding
the ignition timing. This results in
decreased engine RPM and perfor-
mance.
DET Troubleshooting
Use this chart to determine causes and solutions for detonation. If none
of these conditions exists and the sensor remains activated, see your
Polaris dealer for diagnosis.
D.E.T. Flash Signals
Use this chart to determine the meaning and course of action for each
D.E.T. flash signal.
Possible Cause Solution
Poor quality fuel Replace with higher quality fuel
Improper engine modifications Do not modify the engine
Incorrect jetting Use the correct jetting for your altitude
Type of Flash Cause Action
3 flashes of 1 second each Detonation See DET Troubleshooting Chart
Solid 3-second flash, off 1
second, repeats until engine
is shut down
Faulty sensor See your Polaris dealer
Solid non-blinking light High water
temperature
See your Polaris dealer. NOTE:
If temporary operation is
unavoidable, drive slowly and
stop the engine frequently to
allow the engine to cool.
✪