Emission Control System Information - TOHATSU MD 40B2 Owner's Manual

EMISSION CONTROL SYSTEM INFORMATION

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Emission Sources
Carbon monoxide, oxides of nitrogen and
hydrocarbons are produced in the course
of the combustion process. Controlling
production of oxides of nitrogen and
hydrocarbons is very important because
they react to form a photochemical smog
under certain conditions when subjected
to sunlight. Carbon monoxide does not
react in the same way, but is a toxic
byproduct.
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Ignition Timing Control System
To reduce the amount of HC, CO and NOx
produced, the ignition timing control sys-
tem continuously adjusts the ignition tim-
ing.
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Fuel Injection system
The Fuel Injection system relies on, multi-
port 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.
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Clean Air Acts of the United States
and California, and Environment
Canada
EPA, California, and Canadian regulations
require all manufacturers to provide written
instructions that describe the operation
and maintenance of commercial emission
control systems.
The following instructions and procedures
must be followed in order to keep the
emissions from your engine within these
emission standards.
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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 following
acts, although not all inclusive, are consid-
ered as tampering:
Removing or modifying any part of the
intake, fuel or exhaust system.
Modifications that cause the engine to
operate outside its design parameters.
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