INTAKE SYSTEM


  1. CONSTRUCTION


    1. Air Cleaner Assembly


      1. An air cleaner element with a full fabric is used for models other than the M/T models for the Australia and New Zealand packages.

      2. An air cleaner element with a paper type is used for the M/T models for the Australia and New Zealand packages.

      3. In the M/T models for the Australia and New Zealand packages, a dedicated intake system is employed to reduce intake resistance through optimization of the intake duct, etc.

        A004GVDE02
        Text in Illustration
        *A For Models other than the M/T Models for the Australia and New Zealand Packages *B Models with M/T for the Australia and New Zealand Packages
        *1 Intake Air Resonator *2 Resonator
        *3 Air Cleaner Inlet Assembly *4 Air Cleaner Cap Sub-assembly
        *5 Air Cleaner Case Sub-assembly *6 Air Cleaner Filter Element Sub-assembly
        *7 Intake Mass Air Flow Meter Sub-assembly *8 No.1 Air Cleaner Hose

    2. Chamber Assembly


      1. A new mechanism has been developed which utilizes the air vibrations present in the intake system and, linked with the driver's operation of the accelerator pedal, draws the air intake sound directly into the vehicle cabin.

      2. Modulation of the air intake sound for city driving and sports driving is carried out so that during slow acceleration, consideration has been made with the air intake sound to avoid feelings of stress from city driving, and during full-throttle acceleration, a sports car-like air intake sound is produced.

      3. The damper inside the chamber assembly resonates to provide the optimal air intake sound.

        A004GL8E03
        Text in Illustration
        *1 Damper Section *2 Hose
        *3 Connector - -
        *a Air Vibrations *b to Vehicle Cabin
        *c from No.1 Air Cleaner Hose - -

    3. Throttle Body


      1. A linkless-type throttle body in which the throttle position sensor and the throttle control motor are integrated is used. It achieves excellent throttle valve control.

      2. The throttle valve driving motor uses a DC motor with excellent response and minimal power consumption. Driver operations (the extent to which the accelerator pedal is pressed) is sent to the ECM by an accelerator position sensor located on the accelerator pedal. The ECM determines how wide to open the throttle according to the driving state, and activates the electronic throttle motor. The aperture of the throttle valve is fed back into the ECM by the throttle position sensor.

      3. The dual nature of the system (main and sub), containing both accelerator position sensor and throttle position sensor, constantly monitors the system for errors.

      4. If an error is detected, the driver is informed via a warning light located on the meter, and power to the motor is cut off. The throttle valve aperture returns to its predetermined state by means of a throttle valve return spring. It is possible to regulate the engine output in accordance with the aperture of the accelerator by cutting off fuel injection and delaying ignition.

      5. A large-bore throttle has been adopted to accommodate high output.

        A004GU8E03
        Text in Illustration
        *1 Throttle Valve *2 Throttle Control Motor (DC Motor)
        *3 Throttle Position Sensor - -

    4. Intake Manifold


      1. A lightweight plastic is used for the intake manifold for models other than the M/T models for the Australia and New Zealand packages.

      2. In the M/T models for the Australia and New Zealand packages, an aluminum intake manifold with an optimized branch length and enlarged port cross-sectional area was employed to increase the intake efficiency.

      3. A red crystal coating was used for the aluminum intake manifold.

      4. With the adoption of the D-4S system, fuel injector assembly installation holes for port injection have been added on the intake manifold side area.

      5. Port diameter has been optimized in order to improve engine output.

      6. The engine's center of gravity has been lowered by adopting an intake manifold with a low overall height, and engine response has been improved by shortening the length of the port.

        A004GO1E02
        Text in Illustration
        *A For Models other than the M/T Models for the Australia and New Zealand Packages *B Models with M/T for the Australia and New Zealand Packages
        *1 Intake Manifold *2 No.1 Intake Manifold To Head Gasket