Honda 2007 INTERCEPTOR VFR800 Owner's Manual page 234

Exhaust Emission Control System
The exhaust emission control system
includes a secondary air injection system,
PGM-FI system, two three-way catalytic
converters, and two heated oxygen sensors.
No adjustment to these systems should be
made although periodic inspection of the
components is recommended.
Emission Control Systems
PGM-FI System
The PGM-FI system uses sequential
multiport fuel injection. It has four
subsystems: Air Intake, Engine Control,
Fuel Control, and Exhaust Control.
The Engine Control Module (ECM) 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
The system constantly adjusts the ignition
timing, reducing the amount of HC, CO
and NOx produced.
Technical Information
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