Engine Protection Mode; Engine Control Module (Ecm); Other Instruments - Volvo 5.0OSiE-J Operator's Manual

Instrumentation

Engine Protection Mode

In a low oil pressure, low voltage, engine overheat, or lack of exhaust cooling water situation, the Electronic Fuel
Injection (EFI) system will enter an Engine Protection Mode (EPM). In such cases, if an acoustic alarm has been
installed with your engine, the alarm will sound to notify you of a malfunction.
CAUTION! If a malfunction triggers the en-
gine protection mode, the engine may either
return to idle or shut down, depending on the
engine equipment and circumstances.
1. In boats equipped with the Electronic Vessel Control system (EVC-ec), alarm handling is different. After the alarm is acknowledged,
the buzzer is turned off. Please refer to the appendix for additional information.
26
51279c
Under these conditions, engine operation is limited to
2500 RPMs or less. When the engine enters EPM,
there will be a temporary reduction in power until the
problem is resolved. We strongly urge you to bring
the engine to idle to investigate the problem. If the
acoustic alarm stops sounding, the malfunction has
been cleared and the engine may now be operated
normally.
If you are unable to locate and resolve the problem,
you may continue to operate the engine at above idle
speed, keeping in mind that the acoustic alarm will
continue sounding and the engine speed will remain
1
below 2500 RPMs .
NOTICE! Continuing to run the engine in engine pro-
tection mode without correcting the cause
may result in engine damage.
Use the oil pressure and water temperature gauges to
verify a problem exists, then inspect the engine crank-
case for proper oil level and check the water inlets for
obstructions. The low oil pressure/engine overheat
problem must be corrected before the engine will re-
turn to normal operation.
To reset the Engine Protection Mode after the prob-
lem is corrected, reduce engine speed to idle, allow
the engine to cool, and then continue with normal op-
eration.
NOTICE! If the problem continues, contact your Vol-
vo Penta dealer and have the engine in-
spected.

Engine Control Module (ECM)

The engine control module (ECM) is designed to
maintain exhaust emission levels while maintaining
excellent drivability and fuel efficiency. The ECM con-
trols the following conditions:
•
Fuel, ignition, and idle air control.
•
Knock sensor system.
•
Various other discrete outputs.

Other Instruments

See your Volvo Penta dealer for additional accesso-
ries specifically designed for your Volvo Penta prod-
uct.
VPA 7748131 English 09-2007