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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)