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ДВИГАТЕЛЬ ПРОВЕРКА БЕЗ СНЯТИЯ С АВТОМОБИЛЯ

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CAUTION / NOTICE / HINT

CAUTION:
A01IKSJ

To prevent injury due to contact with an operating V-ribbed belt or cooling fan, keep your hands and clothing away from the V-ribbed belt and cooling fans when working in the engine compartment with the engine running or the engine switch on (IG).

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PROCEDURE


  1. Click here

    INSPECT ENGINE COOLANT

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  2. Click here

    INSPECT ENGINE OIL

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  3. Click here

    INSPECT BATTERY CONDITION

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  4. Click here

    INSPECT SPARK PLUG

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  5. Click here

    INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY


    1. Remove the air cleaner filter element sub-assembly.

    2. Visually check that the air cleaner filter element sub-assembly is not damaged or excessively oily. If necessary, replace the air cleaner filter element sub-assembly.

      Tip:

      • If there is any dirt or clogs in the air cleaner filter element sub-assembly, clean it with compressed air.

      • If any dirt or clogs remain even after cleaning the air cleaner filter element sub-assembly with compressed air, replace it.

    3. Install the air cleaner filter element sub-assembly.

  6. Click here

    INSPECT V-RIBBED BELT

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  7. Click here

    INSPECT V-RIBBED BELT TENSIONER ASSEMBLY


    1. Remove the V-ribbed belt.

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    2. Turn the V-ribbed belt tensioner assembly clockwise and counterclockwise and check that it turns smoothly and does not catch.

      Tip:

      If the V-ribbed belt tensioner assembly does not turn smoothly or catches, replace the V-ribbed belt tensioner assembly.

    3. Install the V-ribbed belt.

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  8. Click here

    INSPECT VALVE LASH ADJUSTER ASSEMBLY NOISE


    1. Rev up the engine several times. Check that the engine does not emit unusual noises.

    2. If unusual noises occur, warm up the engine and idle it for 30 minutes or more, then perform the inspection.

      Tip:

      If any defects or problems are found during the inspection, perform valve lash adjuster assembly inspection.

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    INSPECT IGNITION TIMING


    1. Warm up and stop the engine.

    2. When using the GTS:


      1. Connect the GTS to the DLC3.

      2. Start the engine and run it at idle.

      3. Turn the GTS on.

      4. Enter the following menus: Powertrain / Engine / Data List / IGN Advance.


        1. Powertrain > Engine > Data List
          Tester Display
          IGN Advance




        Standard Ignition Timing
        5 to 20° BTDC at idle
        Note:

        • Check the ignition timing with the cooling fans off.

        • Turn off all electrical systems and the A/C.

        • When checking the ignition timing, the transaxle should be in neutral or park.

      5. Enter the following menus: Powertrain / Engine / Active Test / Connect the TC and TE1 / ON.


        1. Powertrain > Engine > Active Test
          Active Test Display
          Connect the TC and TE1
          Data List Display
          IGN Advance





      6. Monitor IGN Advance of the Data List.

        Standard Ignition Timing
        8 to 12° BTDC at idle

      7. Enter the following menus: Powertrain / Engine / Active Test / Connect the TC and TE1 / OFF.

      8. Check that the ignition timing advances immediately when the engine speed is increased.

    3. When not using the GTS:


      1. A01IJ57C10
        *a DLC3

        Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

        09843-18040
        Note:

        • Confirm the terminal numbers before connecting them. Connecting the wrong terminals may damage electrical components.

        • Check the ignition timing with the cooling fans off.

        • Turn off all electrical systems and the A/C.

        • When checking the ignition timing, the transaxle should be in neutral or park.

      2. A01IGWX

        Connect the clip of a timing light to the ignition coil wire for the No. 1 cylinder.

        Note:

        Use a timing light that detects primary signals.

      3. A01IH1GC01
        *a Grommet
        *b Protrusion

        Remove the bolt and separate the radiator reserve tank assembly from the radiator reserve tank bracket.

        Note:

        Secure the radiator reserve tank assembly with a string.

      4. Remove the radiator reserve tank bracket.

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      5. Start the engine and run it at idle.

      6. Check the ignition timing at idle.

        Standard Ignition Timing
        8 to 12° BTDC at idle

      7. Disconnect terminals 13 (TC) and 4 (CG) of the DLC3.

      8. Check the ignition timing at idle.

        Standard Ignition Timing
        5 to 20° BTDC at idle

      9. Confirm that the ignition timing advances immediately when the engine speed is increased.

      10. Install the radiator reserve tank bracket.

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      11. Install the radiator reserve tank assembly to the radiator reserve tank bracket with the bolt.

        12 N*m 122 kgf*cm 9 ft.*lbf
        Note:

        Insert the protrusion of the radiator reserve tank assembly into the grommet of the radiator reserve tank bracket.

      12. Disconnect the clip of the timing light from the ignition coil wire for the No. 1 cylinder.

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    INSPECT ENGINE IDLE SPEED


    1. Warm up and stop the engine.

    2. When using the GTS:


      1. Connect the GTS to the DLC3.

      2. Start the engine and run it at idle.

      3. Turn the GTS on.

      4. Enter the following menus: Powertrain / Engine / Data List / Engine Speed.


        1. Powertrain > Engine > Data List
          Tester Display
          Engine Speed




      5. Read the value displayed on the tester.

        Standard Idle Speed
        700 to 800 rpm
        Note:

        • Check the engine idle speed with the cooling fans off.

        • Turn off all electrical systems and the A/C.

        • When checking the engine idle speed, the transaxle should be in neutral or park.

    3. When not using the GTS:


      1. A01IJ57C91
        *a DLC3

        Using SST, connect a tachometer probe to terminal 9 (TAC) of the DLC3.

        09843-18030
        Note:

        Be sure to connect the tachometer probe to the correct terminal. Connecting the wrong terminals can cause damage to electrical components.

      2. Start the engine and run it at idle.

      3. Inspect the engine idle speed.

        Standard Idle Speed
        700 to 800 rpm
        Note:

        • Check the engine idle speed with the cooling fans off.

        • Turn off all electrical systems and the A/C.

        • When checking the engine idle speed, the transaxle should be in neutral or park.

      4. Disconnect the tachometer probe from terminal 9 (TAC) of the DLC3.

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    INSPECT COMPRESSION

    Note:

    Keep the spark plug holes free of foreign matter when measuring the compression pressure.


    1. Warm up and stop the engine.

    2. Check for DTCs.

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    3. Remove the 4 spark plugs.

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    4. Disconnect the 4 fuel injector connectors.

    5. A01IHUB

      Check the cylinder compression pressure.


      1. Insert a compression gauge into the spark plug hole.

      2. Fully open the throttle.

      3. While cranking the engine, measure the compression pressure.

        Standard Compression Pressure
        1450 kPa (14.8 kgf/cm2, 210 psi)
        Minimum Compression Pressure
        980 kPa (10.0 kgf/cm2, 142 psi)
        Pressure Difference between Each Cylinder
        200 kPa (2.0 kgf/cm2, 29 psi) or less
        Note:

        • Always use a fully charged battery to obtain an engine speed of 250 rpm or more.

        • Inspect all cylinders in the same way.

        • Measure the compression pressure as quickly as possible.

      4. If the cylinder compression pressure is low, pour a small amount of engine oil into the cylinder through the spark plug hole and inspect it again.

        Tip:

        • If adding oil increases the compression pressure, the piston rings and/or cylinder bore may be worn or damaged.

        • If the compression pressure stays low, a valve may be stuck or seated improperly, or there may be leaks in the cylinder head gasket.

    6. Connect the 4 fuel injector connectors.

    7. Install the 4 spark plugs.

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    8. Clear the DTCs.

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      Note:

      After the inspection, clear the DTCs, check for DTCs again and make sure the normal system code is output.

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    INSPECT CO/HC

    Tip:

    This check determines whether or not the idle CO/HC complies with regulations.


    1. Start the engine.

    2. Run the engine at 2500 rpm for approximately 180 seconds.

    3. Insert a CO/HC meter testing probe at least 40 cm (1.31 ft.) into the tailpipe during idle.

    4. Immediately check the CO/HC concentration during idle and when the engine is running at 2500 rpm.

      Tip:

      When performing a 2 mode (with the engine idling/running at 2500 rpm) test, the measurement procedures are determined by applicable local regulations.

      If the CO/HC concentration does not comply with the regulations, perform troubleshooting in the order given below.


      1. Check for DTCs.

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      2. See the following table for possible causes, then inspect the applicable parts and repair them if necessary.

        CO HC Problem Cause
        Normal High Rough idle

        1. Faulty ignition:


          • Incorrect valve timing

          • Fouled, shorted or improperly gapped spark plugs

        3. Incorrect valve clearance (valve lash adjuster assembly)

        4. Leaks in intake or exhaust valves

        5. Leaks in cylinders
        Low High Rough idle (Fluctuating HC reading)

        1. Vacuum leaks:


          • PCV hoses

          • Intake manifold

          • Throttle with motor body assembly

        3. Lean mixture causing misfire
        High High Rough idle (Black smoke from exhaust)

        1. Restricted air cleaner filter element sub-assembly

        2. Plugged PCV valve

        3. Faulty SFI systems:


          • Fuel pressure regulator assembly

          • Engine coolant temperature sensor

          • Mass air flow meter sub-assembly

          • ECM

          • Fuel injector assemblies

          • Throttle position sensor (built into throttle with motor body assembly)