Suzuki 2000 Grand Vitara SQ625 Service Manual page 540

The engine and emission control system has 4 major
sub-systems: air intake system, fuel delivery system,
electronic control system and emission control sys-
tem.
Air intake system includes air cleaner, mass air flow
sensor, throttle body, idle air control valve and intake
manifold.
Fuel delivery system includes fuel pump, delivery
pipe, fuel pressure regulator, fuel injectors, etc.
ENGINE AND EMISSION CONTROL SYSTEM (G16 / J20 ENGINES) 6E1-3
GENERAL DESCRIPTION
Electronic control system includes ECM (PCM), vari-
ous sensors and controlled devices.
Emission control system includes EGR, EVAP and
PCV systems.