EC07H
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06
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EMISSION CONTROL
EMISSION CONTROL SYSTEM
EC
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1
614
Author:
Date:
1996 LAND CRUISER (RM451U)
EMISSION CONTROL SYSTEM
PURPOSE
The emission control systems are installed to reduce the amount of HC, CO and NOx exhausted from the
engine ((3), (4) and (5)), to prevent the atmospheric release of blow
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by gas
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containing HC (1) and evapo-
rated fuel containing HC being released from the fuel tank (2).
The function of each system is shown in the following table.
System
Abbreviation
Function
(1) Positive Crankcase Ventilation
(2) Evaporative Emission Control
(3) Exhaust Gas Recirculation
(4) Three
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Way Catalytic Converter
(5) Sequential Multiport Fuel Injection*
PCV
EVAP
EGR
TWC
SFI
Reduces HC
Reduces evaporated HC
Reduces NOx
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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Version 1.00 - 12/21/2010