1. Contents
Click a Section Tab

2. Engine Overall
Intake and Exhaust System
Fuel System
Charging
Engine Control System

3. Engine Overall 1ZZ-FE Engine
In-line 4-cylinder, 1.8-liter, 16-valve DOHC gasoline engine, ETCS-i, VVT-i

4. 16-valve, DOHC with VVT-i for Intake, Chain Drive
Engine Overall
Specification of 1ZZ-FE
Model
New Model
Previous Model
Engine
1ZZ-FE 
No. of Cylinders and Arrangement
4-cylinder, In-line
Valve Mechanism
16-valve, DOHC with VVT-i for Intake, Chain Drive
Displacement [cm3 ]
1.794
Bore x Stroke [mm]
79 x 91.5
Compression Ratio
10 : 1
9.6 : 1
Max. Output (EEC gross)
Ps/rpm
6,000
6,000
Max Torque (EEC gross)
kgm/rpm
4,200
4,200
Emission Regulation
EURO III
EURO II

5. Engine Overall Major Difference Section Item Intake and Exhaust System
Link-less type throttle body is used
Two TWCs are used
Fuel System
Charcoal canister is integrated in module fuel pump
Charging System
Segment conductor type alternator is used
Engine Control System
Non-contact type accelerator pedal position sensor is used
Non-contact type throttle position sensor is used
Flat type knock sensor is used
Planar type air fuel ratio sensor is used
Cranking hold function is used
ECM locates in engine compartment

6. Intake and Exhaust System
Intake and Exhaust Manifold
Air Fuel Ratio sensor is used to attain EURO III emission regulation
Air Fuel Ratio Sensor
Link-less Type Throttle Body
Mesh Type Gasket
Plastic Intake Manifold
Stainless Steel Exhaust Manifold

7. Intake and Exhaust System
TWC
2 TWCs (Three-Way Catalytic converters) are used to attain EURO III regulation
Cell Density 93 cells/cm2
Wall Thickness 0.09 mm
Volume 875 cm3
Ball Joint
Sub Muffler
Main Muffler
TWCs
Muffler Capacity
Main: 16.6 L / Sub: 3.0 L
Cell Density 62 cells/cm2
Wall Thickness mm
Volume 875 cm3
Heated Oxygen Sensor

8. Fuel System Module Fuel Pump
Charcoal canister is integrated in the module fuel pump
[Module Fuel Pump]
Charcoal Canister
Fuel Filter
Pressure Regulator
Fuel Sender Gauge
Fuel Pump
Fuel Tank

9. Joined segment conductor system
Charging System
Alternator
Compact and lightweight segment conductor type alternator is used
Segment Conductor
Cross Section
Segment Conductor
Stator
Joined
Cross Section
Joined segment conductor system
Stator
Alternator
Output
SE08A
12V – 80A

10. Flat Type (Non-resonant Type)
Engine Control System
Main Components of Engine Control System
Model
New
Previous
CPU
32-bit CPU ←
Air Flow Meter
Hot-wire Type
Crankshaft Position Sensor
(Rotor Teeth)
Pick-up Coil Type (36-2)
Camshaft Position Sensor
Pick-up Coil Type (3)
Accelerator Pedal Position Sensor
Non-contact Type
N.A
Throttle Position Sensor
Linear Type
Knock Sensor
Flat Type (Non-resonant Type)
Air Fuel Ratio Sensor
Planar Type
Heated Oxygen Sensor
Cup Type
Fuel Injector
12-hole Type
Throttle Actuator
ETCS-i
Link Type

11. Engine Control System ETCS-i
Non-contact type throttle position sensor is used
Throttle Body
Throttle Valve
Magnet Yoke
Throttle Position Sensor
Hall IC
Throttle Control Motor
Throttle Control Motor

12. Piezoelectric Element
Engine Control System
Flat Type Knock Sensor
This sensor can detect the knocking frequency of larger range compared with the conventional type
Steel Weight G
Piezoelectric Element
[Operation]
The knocking vibration is transmitted to the steel weight
Its inertia applies pressure (G) to the piezoelectric element
Electromotive force is generated

13. Operates Automatically
Engine Control System
Cranking Hold Function
Once the engine switch is pushed, this function continues to operate the starter until the engine starts
Power Mode
Engine Starting
Engine Running
OFF
Engine Switch
Push once
Operates Automatically
Starter
Stop
Operates
Stop
Engine Starts

14. Engine Control System ECM
The ECM is located at the engine compartment, therefore the water proof connector is used
Water Proof Connector
Air Cleaner
ECM

15. Service Point (Engine Control System)
Inspection Procedure
In adoption of water proof connector, check for open circuit in the ECM cannot be done
[Conventional Type]
SST (Check Wire)