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 95 or higher
    Octane Rating 91 or higher
    Emission Regulation EURO 6

  3. MAIN FEATURES


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

      (A): High performance and reliability

      (B): Low noise and vibration

      (C): Lightweight and compact design

      (D): Good serviceability

      (E): Clean emissions and fuel economy

      Item (A) (B) (C) (D) (E)
      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