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EMISSION CONTROL SYSTEM INFORMATION
ENOM01000-0
Emission Sources
Carbon monoxide, oxides of nitrogen
and hydrocarbons are produced in the
course of the combustion process. Con-
trolling production of oxides of nitrogen
and hydrocarbons is very important
because they react to form a photo-
chemical smog under certain conditions
when subjected to sunlight. Carbon
monoxide does not react in the same
way, but is a toxic byproduct.
ENOM01001-0
Ignition Timing Control System
To reduce the amount of HC, CO and
NOx produced, the ignition timing con-
trol system continuously adjusts the
ignition timing.
ENOM01002-1
Fuel Injection system
The Fuel Injection system relies on, mul-
tiport fuel injection for both engine
control and fuel control. The Engine
Control Unit (ECU) has several sensors to
determine how much fuel is needed for
injection under all operating conditions.
ENOM01003-0
Clean Air Acts of the United States and
California, and Environment Canada
EPA, California, and Canadian regula-
tions require all manufacturers to pro-
vide written instructions that describe
the operation and maintenance of com-
mercial emission control systems.
The following instructions and proce-
dures must be followed in order to keep
the emissions from your engine within
these emission standards.
ENOM01004-0
Tampering and Modifications
Tampering is a violation of the Federal
Laws of the United States and California.
Tampering with or altering the emission
control system could cause emissions to
increase beyond legal limits. The follow-
ing acts, although not all inclusive, are
considered as tampering:
z Removing or modifying any part of the
intake, fuel or exhaust system.
z Modifications that cause the engine
to operate outside its design parame-
ters.
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