ENGINE UNIT


  1. 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.

  2. SPECIFICATION

    Engine Type 2ZR-FXE
    No. of Cyls. & 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 Sequential Multiport Fuel Injection (SFI)
    Ignition System Direct Ignition System (DIS)
    Displacement

    cm3(cu. in.)

    		 1798 (109.7)
    Bore x Stroke mm (in.) 80.5 X 88.3 (3.17 X 3.48)
    Compression Ratio 13.0 : 1
    Max. Output (EEC) kW@rpm 72@5200
    Max. Torque (EEC) N*m@rpm 142@3600
    Valve Timing Intake Open 40° BTDC to 22° ATDC
    Close 40° ABDC to 102° ABDC
    Exhaust Open 35° BBDC
    Close 9° ATDC
    Spark Plug Type DENSO Made FC16HR-C9 (Iridium)
    Plug Gap mm (in.) 0.8 to 0.9 (0.0315 to 0.0354)
    Firing Order 1 - 3 - 4 - 2
    Research Octane Number 91 or higher
    Octane Rating 87 or higher
    Emission Regulation*

    SULEV30

    EURO VIb

    *: Emission regulations differ depending on the specifications of the vehicle.

    B006H6GE01

  3. MAIN FEATURES


    1. The 2ZR-FXE engine has achieved the following 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 i ii iii iv v
        The high-expansion ratio Atkinson cycle is adopted. - - - - ○
        Engine Proper An aluminum cylinder block sub-assembly is used. - - ○ - -
        An offset crankshaft is used. ○ ○ - - ○
        Spiny type liners are used. ○ - - - ○
        Drilled V-shaped passages in the cylinder block sub-assembly are used. ○ - - - ○
        The tumble keep shape is used for the top of the pistons. ○ - - - ○
        The skirt portion of the piston has a resin coating applied to reduce friction. ○ ○ - - ○
        Valve Mechanism A chain sub-assembly and No. 1 chain tensioner assembly are used. - ○ - ○ -
        Valve lash adjuster assemblies are used. - ○ - ○ -
        No. 1 valve rocker arm sub-assemblies are used. - ○ - - ○
        The Variable Valve Timing-intelligent (VVT-i) system is used. ○ - - - ○
        Intake and Exhaust System A plastic intake manifold is used. - - ○ - -
        A linkless type throttle body assembly is used. - - ○ ○ -
        A Step motor type Exhaust Gas Recirculation (EGR) valve is used. ○ - - - ○
        A water-cooled type Exhaust Gas Recirculation (EGR) cooler is used. ○ - - - ○
        A stainless steel exhaust manifold is used. - - ○ - ○
        Three-Way Catalytic converters (TWCs) are used. - - - - ○
        A 2-way exhaust control system is used. ○ ○ - - -
        Fuel System 12-hole type fuel injector assemblies are used. ○ - - - ○
        A fuel returnless system is used. - - ○ ○ -
        Quick connectors are used to connect the fuel hoses and fuel pipes. - - - ○ -
        Cooling System An electric engine water pump assembly is used. - - - - ○
        A dual-passage cooling system is used.* ○ - - - ○
        Ignition System A Direct Ignition System (DIS) is used. ○ - ○ ○ ○
        Long-reach type iridium-tipped spark plugs are used. ○ - - ○ ○
        Engine Control System The Electronic Throttle Control System-intelligent (ETCS-i) is used. ○ - - - ○
        A Magneto-Resistance Element (MRE) type cam position sensor is used. ○ - - - -
        A flat type knock control sensor is used. ○ - - - -

        ○: Applicable

        -: Not applicable

        *: Models with dual-passage cooling system