2006 Polaris 700 Classic Owners Manual - Page 30

Detonation Elimination Technology (D.E.T.) FEATURES A detonation sensor monitors the engine and responds to detonation by automatically reducing the engine timing and adding fuel. This results in decreased engine RPM and performance. 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. Possible Cause Poor quality fuel Improper engine modifications Solution Replace with higher quality fuel Do not modify the engine Effect of DET The DET system prevents damage to the engine from detonation while developing the maximum power of the engine safely. If the system senses detonation beyond a preset limit, it retards ignition timing and adds fuel to reduce the detonation and prevent engine damage. When the detonation returns to a permissible level, the system will return spark and fuel to normal, allowing the engine to run at rated power levels. Sensor Fail-Safe The DET includes a sensor fail-safe system to prevent the engine from damage if the sensor fails, becomes disconnected or is unable to detect detonation. The rider will experience a loss in power. The sensor must be reconnected or repaired to regain full power. NOTE: The check engine light will flash six times if the sensor fails or becomes disconnected. 27