Suzuki Wagon R Manual page 2284

ENGINE AND EMISSION CONTROL SYSTEM (M13 ENGINE) 6E2-3
General Description
Engine and Emission Control System Construction
The engine and emission control system is divided into 4 major sub-systems: air intake system, fuel delivery
system, electronic control system and emission control system.
Air intake system includes air cleaner, throttle body, IAC valve and intake manifold.
Fuel delivery system includes fuel pump, delivery pipe, etc. Electronic control system includes ECM, various
sensors and controlled devices.
Emission control system includes EGR, EVAP and PCV system.