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Features, Engine management system – Polaris 2010 FST IQ Touring User Manual

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FEATURES

Engine Management System

To protect the engine, the engine management system will limit engine

RPM, vehicle speed or turbo boost (if equipped) if the following condi-

tions are encountered. Under extreme overheating conditions, the sys-

tem will also stop the engine entirely to prevent engine damage.

Vehicle Speed is Limited

Engine Speed is Limited

Turbo Boost is Limited (Turbo)

Cause

Function

Maximum Speed

MPH (km/h)

Result

Reverse is selected

Reverse

12 (19)

Engine will mis-

fire at higher

vehicle speed

Defective rollover switch Rollover

37 (59)

Throttle stuck, throttle

lever depressed

Throttle stuck, throttle

safety switch high

18 (29)

Maximum vehicle speed Max speed limiter

186 (299)

Cause

Function

Maximum RPM

Result

Reverse is selected,

speed sensor error

Reverse

5300

Engine will mis-

fire at higher

engine speed

Defective rollover

switch, speed sensor

error

Rollover

6000

Throttle stuck, throttle

lever depressed, speed

sensor error

Throttle stuck, throttle

safety switch high

5450

Throttle stuck, throttle

lever at idle position

Throttle stuck, throttle

safety switch low

2400

Maximum vehicle speed,

speed sensor error

Max speed limiter

8800

Reverse failure

Reverse

2500

ECU cannot

determine if

reverse or for-

ward selected

Indication

Result

Illuminated High Temperature Indicator

Operator may feel

loss of power

Engine coolant temperature is at or below 122

° F (50° C) OR

Engine coolant temperature is at or above 203

° F (95° C)

Intake manifold air temperature is at or below 32

° F (0° C) OR

Intake manifold air temperature is at or above 158

° F (70° C)

Overboost condition occurs (Check Engine light will flash)

Fuel octane is too low (use the recommended fuel)