ENGINE UNIT


  1. OUTLINE


    1. The 2AR-FXE engine is an in-line 4-cylinder, 2.5 liter, 16 valve DOHC engine. This engine uses a Variable Valve Timing-intelligent (VVT-i) system, Direct Ignition System (DIS), Electronic Throttle Control System-intelligent (ETCS-i) and Exhaust Gas Recirculation (EGR)* system. These control functions achieve improved engine performance, fuel economy, and clean emissions.


      • *: Models with EGR system

  2. SPECIFICATION

    No. of Cyls. and Arrangement 4-cylinder, In-line
    Valve Mechanism 16-valve DOHC, Chain Drive (VVT-i)
    Combustion Chamber Pentroof Type
    Flow of Intake and Exhaust Gasses Cross-flow
    Fuel System SFI
    Ignition System DIS
    Displacement

    2494 cm3(152.2 cu. in.)
    Bore x Stroke 90.0 mm x 98.0 mm (3.54 in. x 3.86 in.)
    Compression Ratio 12.5 : 1
    Max. Output

    114 kW @ 5700 rpm*1

    112 kW @ 5700 rpm*2
    Max. Torque

    210 N*m @ 4200 to 4400 rpm*1

    206 N*m @ 4400 to 4800 rpm*2
    Valve Timing Intake Open -23° to 22° BTDC
    Closed 103° to 58° ABDC
    Exhaust Open 35° BBDC
    Closed 9° ATDC
    Spark Plug Manufacturer DENSO
    Type FK16HR-A8 (Iridium)
    Plug Gap 0.7 to 0.8 (0.028 in. to 0.032 in.)
    Firing Order 1 - 3 - 4 - 2
    Research Octane Number 91 or higher
    Octane Rating 87 or higher
    Emission Regulation*3 EURO 5
    EURO 6
    EURO 6c
    ULEV
    Engine Service Mass (Reference)*4 135 kg (298 lb)

    • *1: Except models for Korea

    • *2: Models for Korea

    • *3: Emission regulation differ by country and region.

    • *4: Weight shows the figure with oil and engine coolant fully filled.

  3. MAIN FEATURES


    1. The 2AR-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)
        Engine Proper A cylinder head cover sub-assembly made of aluminum alloy is used. - ○ ○ - -
        A taper squish shape is used for combustion chambers. ○ - - - ○
        Spiny-type liners are used in the cylinder bores. ○ - - - ○
        A water jacket spacer is used. ○ - - - ○
        The piston skirt is coated with resin. ○ - - ○ -
        Low tension piston rings are used. ○ - - - -
        A resin gear engine balancer assembly is used. - ○ ○ - -
        Valve Mechanism The Variable Valve Timing-intelligent (VVT-i) system is used. ○ - - - ○
        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. ○ - - ○ -
        Lubrication System An oil filter with a replaceable element is used. - - ○ - ○
        Cooling System TOYOTA Genuine Super Long Life Coolant (SLLC) is used. - - - ○ -
        Intake and Exhaust System An intake manifold made of plastic is used. - - ○ - -
        A linkless type throttle body with motor assembly is used. ○ - ○ - ○
        A stainless steel exhaust manifold sub-assembly is used. ○ - ○ - ○
        An ultra thin-wall, high-cell density ceramic type Three-Way Catalytic converter (TWC) is used. - - - - ○
        Fuel System A fuel returnless system is used. - - ○ - ○
        Quick connectors are used to connect the fuel hose with the fuel pipe. - - - ○ -
        Compact 12-hole type fuel injector assemblies are used. ○ - ○ - ○
        Ignition System The Direct Ignition System (DIS) is used. ○ - - ○ ○
        Long-reach type iridium-tipped spark plugs are used. ○ - - ○ ○
        Engine Control System A Magnetic Resistance Element (MRE) type camshaft position sensor is used. ○ - - - ○
        The Electronic Throttle Control System-intelligent (ETCS-i) is used. ○ - - - ○
        An evaporative emission control system is used. - - - - ○

        Tech Tips

        ○: Applicable

        -: Not applicable