ENGINE UNIT GENERAL

  1. OUTLINE

    1. The 1AZ-FE engine is an in-line, 4-cylinder, 2.0-liter, 16-valve DOHC engine. This engine has been designed for leaded gasoline.

    2. This engine have been adopted the Direct Ignition System (DIS) and big bore and long port intake manifold. It has been developed to achieve high performance, quietness, fuel economy and clean emissions.

  2. SPECIFICATION

    No. of Cyls. and Arrangement 4-cylinder, In-line
    Valve Mechanism 16-valve DOHC, Chain Drive
    Combustion Chamber Pentroof Type
    Manifolds Cross-flow
    Fuel System SFI*1
    Ignition System DIS
    Displacement

    1998 cm3(121.9 cu. in.)
    Bore x Stroke 86.0 mm x 86.0 mm (3.39 in. x 3.39 in.)
    Compression Ratio 9.5 : 1
    Max. output [EEC] 100 kW @ 5600 rpm
    Max. torque [EEC] 190 N*m @ 4000 rpm
    Valve Timing Intake Open 3° BTDC
    Closed 43° ABDC
    Exhaust Open 45° BBDC
    Closed 3° ATDC
    Firing Order 1 - 3 - 4 - 2
    Research Octane Number 95 or higher
    Engine Service Mass*2 (Reference) 115 kg (253.5 lb)

    Tech Tips

    *1: Sequential Multiport Fuel Injection

    *2: Weight shows the figure with oil and water fully filled.

  3. MAIN FEATURES

    1. The 1AZ-FE engine has been able to achieve the following performance features through the adoption of the items listed below.

      1. High performance and fuel economy

      2. Low noise and vibration

      3. Lightweight and compact design

      4. Good serviceability

      5. Clean emission

        Item (1) (2) (3) (4) (5)
        Engine Proper A cylinder block made of aluminum alloy along with a magnesium head cover has been used. - - ○ - -
        The taper squish shape has been used for the piston head, increasing combustion efficiency. ○ - - - ○
        A timing chain and chain tensioner have been used. - ○ ○ ○ -
        Intake and Exhaust System Electrical throttle body is used. ○ - - - -
        Intake manifold made of plastic is used. - - ○ - -
        A dual type exhaust manifold is used. ○ - - - -
        Fuel System The fuel returnless system is used. - - ○ ○ ○
        Quick connectors are used to connect the fuel hose with the fuel pipe. - - ○ ○ ○
        Plastic made fuel tank has been used. - - ○ - -
        Ignition System The Direct Ignition System (DIS) makes ignition timing adjustment unnecessary. - - - - ○
        Starting System The planetary reduction type starter with the interpolar magnet has been used. - - ○ - -
A0076SYE01