Toyota Land Cruiser Quiz
Emission Control

Emission control system

In this manual: Emission Control
Introduction — 13Preparation — 19Service specifications — 19Engine Mechanical — 28Automatic Transmission — 22Body Electrical — 373Brake — 34Propeller Shaft — 7Transfer — 24Motor shift control system — 1Steering — 34Ignition — 7Charging — 9Emission Control — 6Cooling — 17Starting — 12Lubrication — 13Maintenance — 7Chassis — 1Disassembly — 1
~1min read

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.

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