ENGINE UNIT > GENERAL



OUTLINE

  1. The 2ZR-FXE engine is an in-line, 4-cylinder, 1.8-liter, 16-valve DOHC engine.



  2. This engine uses a high-expansion ratio Atkinson cycle, Variable Valve Timing-intelligent (VVT-i) system, Direct Ignition System (DIS), Electronic Throttle Control System-intelligent (ETCS-i) and Exhaust Gas Recirculation (EGR) system employing a highly efficient EGR cooler. In addition, use of an electric water pump has enhanced warm-up performance and reduced cooling losses. Thus, improved engine performance, quietness, fuel economy, and cleaner emissions have been achieved.


    W103905


SPECIFICATION

  1. The specifications of the 2ZR-FXE engine are shown in the following table.

    Engine Type
    		2ZR-FXE
    No. of Cyls. and Arrangement
    		4-cylinder, In-line
    Valve Mechanism
    		16-valve DOHC, Chain Drive (with VVT-i)
    Combustion Chamber
    		Pentroof Type
    Flow of Intake and Exhaust Gasses
    		Cross-flow
    Fuel System
    		SFI
    Ignition System
    		DIS
    Displacement
    		1798 cm3 (109.7 cu. in.)
    Bore x Stroke
    		80.5 mm X 88.3 mm (3.17 in. X 3.48 in.)
    Compression Ratio
    		13.0:1
    Max. Output (EEC)
    		73 kW@5200 rpm
    Max. Torque (EEC)
    		142 N*m@2800 to 4400 rpm
    Valve Timing
    		Intake
    		Open
    		29°BTDC to 12°ATDC
    Close
    		61°ABDC to 102°ABDC
    Exhaust
    		Open
    		31° BBDC
    Close
    		3° ATDC
    Oil Capacity
    		Dry
    		4.7 liters (5.0 US qts, 4.1 lmp. qts)
    With Oil Filter
    		4.2 liters (4.4 US qts, 3.7 lmp. qts)
    Without Oil Filter
    		3.9 liters (4.1 US qts, 3.4 lmp. qts)
    Oil Grade
    		API grade SL "Energy-Conserving", SM "Energy-Conserving" or ILSAC Multigrade Engine Oil
    Engine Coolant
    		Type
    		TOYOTA Genuine Super Long Life Coolant or the following*1
    Capacity
    		With exhaust heat recirculation system
    		6.9 liters (7.3 US qts, 6.1 lmp. qts)
    Without exhaust heat recirculation system
    		6.5 liters (6.9 US qts, 5.7 lmp. qts)
    Spark Plug
    		Type
    		DENSO Made
    		SC20HR11 (Iridium)
    Plug Gap
    		1.0 mm to 1.1 mm (0.0394 in. to 0.0433 in.)
    Firing Order
    		1 - 3 - 4 - 2
    Fuel
    		Unleaded Gasoline
    Research Octane Number
    		95 or higher
    Emission Regulation
    		EURO V
    Engine Service Mass*2 (Reference)
    		90 kg (198 lb)
    *1: Similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology (Coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids).
    *2: The figure shown is the weight of the engine with coolant and oil.



  2. The performance curves of the 2ZR-FXE engine are shown in the following graph.


    W101584E04


MAIN FEATURES

  1. The 2ZR-FXE engine has achieved the following performance through the use of the items listed in the table below.

    1. High performance and reliability

    2. Low noise and vibration

    3. Lightweight and compact design

    4. Good serviceability

    5. Clean emissions and fuel economy

      Item
      		(1)
      		(2)
      		(3)
      		(4)
      		(5)
      The high-expansion ratio Atkinson cycle is adopted.




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      Engine Proper
      		An aluminum cylinder block sub-assembly is used.


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      An offset crankshaft is used.
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      Spiny type liners are used.
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      The taper squish shape is used for the top of the pistons.
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      The skirt portion of the piston has a resin coating applied to reduce friction.
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      Low-tension piston rings are used.
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      Valve Mechanism
      		A timing chain sub-assembly and chain tensioner assembly are used.

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      Hydraulic valve lash adjuster assembles are used.

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      Roller No.1 valve rocker arms are used.

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      The Variable Valve Timing-intelligent (VVT-i) system is used.
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      Intake and Exhaust System
      		A plastic intake manifold is used.


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      A cable-less type throttle body is used.


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      A DC motor type Exhaust Gas Recirculation (EGR) valve is used.
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      A water-cooled type Exhaust Gas Recirculation (EGR) cooler is used.
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      A stainless steel exhaust manifold is used.


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      Three-Way Catalytic converters (TWCs) are used.




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      A 2-way exhaust control system is used.
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      Fuel System
      		12-hole type fuel injectors are used.
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      A fuel returnless system is used.


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      Quick connectors are used to connect the fuel hoses and fuel pipes.



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      Cooling System
      		An electric engine water pump assembly is used.




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      Ignition System
      		A Direct Ignition System (DIS) is used.
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      Long-reach type iridium-tipped spark plugs are used.
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      Engine Control System
      		The Electronic Throttle Control System-intelligent (ETCS-i) is used.
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      A Magneto-Resistance Element (MRE) type cam position sensor is used.
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      A flat type knock control sensor is used.
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