Honda Accord 4D 2003-2006 Owner's Manual page 510

03/09/03 15:22:40 32SEA610_510
PGM-FI System
The PGM-FI System uses sequential
multiport fuel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
The Engine Control Module (ECM)/
Powertrain Control Module (PCM-
A/T only) uses various sensors to
determine how much air is going
into the engine. It then controls how
much fuel to inject under all
operating conditions.
Ignition Timing Control System
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
Exhaust Gas Recirculation (EGR)
System
The Exhaust Gas Recirculation
(EGR) system takes some of the
exhaust gas and routes it back into
the intake manifold. Adding exhaust
gas to the air/fuel mixture reduces
the amount of NOx produced when
the fuel is burned.
Emissions Controls (Petrol models)
Three Way Catalytic Converter
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine's exhaust
to carbon dioxide (CO ), dinitrogen
(N ), and water vapor.
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Technical Information
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