Electronic Fuel Injection; Detonation (Spark Knock); Preventing Gum Formation And Corrosion - Volvo 5.0OSiE-J Operator's Manual

Maintenance
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Electronic Fuel Injection

The electronic fuel injection (EFI, not shown) fuel me-
tering system delivers the correct amount of fuel to the
engine under all operating conditions. The EFI system
is controlled by a microprocessor, and requires no pe-
riodic maintenance or adjustment. If operational prob-
lems occur, see your Volvo Penta dealer.

Detonation (Spark Knock)

Detonation, or spark knock, is continually monitored
by the electronic fuel injection (EFI) system. The EFI's
computer (ECM) will automatically alter spark ad-
vance to help prevent engine damage if knock is de-
tected, and there will be a slight loss of power.

Preventing Gum Formation and Corrosion

To prevent gum formation and corrosion in the fuel
system, use a fuel stabilizer in the gasoline if it will be
in the tank for more than two weeks or if the boat is be-
ing prepared for winter storage. After adding fuel sta-
bilizer, the engine should be run for ten minutes to
allow stabilized fuel to reach all points of the fuel sys-
tem. Fuel stabilizer is available from your Volvo Penta
dealer.
VPA 7748131 English 09-2007