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[HD-E Engine]
PURPOSE OF SYSTEMS
System
Positive crankcase ventilation
Fuel evaporative emission control
Throttle positioner
Exhaust gas recirculation
Three-way catalyst
(Catalyst provided at under floor.)
Electronic fuel injection*
Abbreviation
PCV
EVAP
TP
EGA
TWC
EFI
*
For inspection and repairs of the EFI system, refer to the EFI section .
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EC-13
EMISSION CONTROL SYSTEM
Purpose
Reduction of blow-by gas (HC emission)
Reduction of evaporative HC emission
Reduction of HC and CO emissions
ReductiOfl of NOx emission
Reduction of HC, CO and NOx emissions
Regulation of all engine conditions for reduction
of exhaust emissions