Toyota
Toyota Land Cruiser
 Service Manual
Emission Control
Emission control system

PURPOSE

The emission control systems are installed to reduce the amount of HC, CO 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 these table:

System

Abbreviation

Function

(1) Positive Crankcase Ventilation (2) Evaporative Emission Control (3) Three-Way Catalytic Converter (4) Sequential Multiport Fuel Injection* PCV EVAP TWC SFI Reduces HC Reduces evaporated HC Reduces HC, CO and NOx Injects a precisely timed, optimum amount of fuel for reduced exhaust emissions

Remark: * For inspection and repair of the SFI system, refer to the SF section in this manual.

    More about Emission Control:

    Emission control system

    Evaporative emission (evap) control system

    Positive crankcase ventilation (pcv) system

    Parts layout and schematic drawing

    Three-way catalytic converter (TWC) system

    Toyota Land Cruiser Service Manual / Emission Control / Emission control system

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