Emission Control System: Purpose
The emission control systems are installed to reduce the amount of CO, HC and NOx exhausted from the engine (3) and (4), to prevent the atmospheric release of blow-by gas containing HC (1) and evaporated fuel containing HC being released from the fuel tank (2).
The function of each system is shown in Fig 1 .
Remark: *For inspection and repair of the SFI system, See SFI .