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L510001-05
ELECTRONIC FUEL INJECTION INFORMATION - 4
POWER REDUCTION MODE
The ECM monitors engine oil pressure, engine coolant
temperature and transmission oil temperature whenever
the engine is running. If any one of these inputs indicate
an abnormal reading, the system will go into “Power
Reduction” mode, followed by the illumination of an
indicator lamp and/or sounding of the warning buzzer (if
equipped). This is a feature that will help protect the
engine or transmission during an over-temp or low oil
pressure condition.
When in “Power Reduction” mode, the ECM will allow
normal engine performance up to 2000 RPM. Above
2000 RPM, the ECM allows fuel delivery through only
half of the fuel injectors. Once the RPM is brought down
below 1200 RPM, normal engine operation is restored
until the RPM exceeds 2000 RPM. The feature allows
maneuverability of the boat while removing the possibility
of high engine speed operation until the problem is
corrected.
On twin engine applications, if confi gured correctly by the
installer, BOTH engines will be limited to 2000 RPM.
NOTICE: If it is not possible to safely shut off the
engine(s), return the engine(s) to idle speed. Once
returned to idle, the ECM will allow the engine(s) to
operate normally below 2000 RPM.
High Engine Coolant Temperature
During operation, if the engine coolant temperature
exceeds 220° F (104.8° C), the engine enters “Power
Reduction” mode and illuminates the WATER TEMP
portion of the warning light cluster (if equipped). A
warning buzzer will also sound (if equipped).
Figure 4-2 WATER TEMP Light Illuminated
WATER
TEMP
OIL
PRESS
CHK
ENGINE
TRANS
TEMP
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