Features Of 1Nz-Fe Engine - Toyota 1NZ-FE User Manual

EG-4
JFEATURES OF 1NZ-FE ENGINE
The 1NZ-FE engine has been able to achieve the following performance through the adoption of the items
listed below.
(1) High performance and fuel economy
(2) Low noise and vibration
(3) Lightweight and compact design
(4) Good serviceability
(5) Clean emission
Section
A cylinder block made of aluminum is used.
An offset crankshaft is used.
Engine Proper Engine Proper
The taper squish shape is used for the combustion
chamber.
A timing chain and chain tensioner are used.
Valve Valve
Mechanism The VVT-i system is used.
Intake manifold made of plastic is used.
The linkless-type throttle body is used.
A stainless steel exhaust manifold is used.
Intake and
Exhaust System
Two TWCs (Three Way Catalytic Converter) are used.
A rearward exhaust layout is used to realize the early
activation of the catalyst.
12-hole type injector is used.
The fuel returnless system is used.
Fuel System Fuel System
Quick connectors are used to connect the fuel hose with
the fuel pipes.
The long-reach type spark plugs are used.
Ignition System
The DIS (Direct Ignition system) makes ignition timing
adjustment unnecessary.
The
System-intelligent) is used.
The non-contact sensor is used in the throttle position
sensor and accelerator pedal position sensor.
Engine Control Engine Control
The cranking hold function is used.
System y
Evaporative emission control system is used.
The use of an air fuel ratio sensor allows for precise
control.
ENGINE - 1NZ-FE ENGINE
Item
ETCS-i (Electronic
(1)
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Throttle Control
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(2) (3) (4) (5)
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