Toyota T100 1996 Service Manual page 951

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 these table.
System
(1) Positive Crankcase Ventilation
(2) Evaporative Emission Control
(3) Exhaust Gas Recirculation
(4) Three−Way Catalytic Converter
(5) Sequential Multiport Fuel Injection *
Remark: * For inspection and repair of the SFI system, refer to the SF section of this manual.
1996 TOYOTA T100 (RM449U)
EMISSION CONTROL (5VZ−FE)
Abbreviation
PCV
EVAP
EGR
TWC
SFI
− EMISSION CONTROL SYSTEM
Reduces crankcase blow−by gas (HC)
Reduces evaporated HC
Reduces NOx
Reduces CO, HC and NOx
Injects a precisely timed, optimum amount of fuel for reduced
exhaust emissions
Author :
Function
Date :
EC−1
EC032−03
940