ДВИГАТЕЛЬ > ПРОВЕРКА БЕЗ СНЯТИЯ С АВТОМОБИЛЯ

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1. CHECK V-RIBBED BELT


    A058797E02

  1. Visually check the belt for excessive wear, frayed cords, etc.
    If any defect has been found, replace the belt.

    УКАЗАНИЕ:
    Cracks on the rib side of a belt are considered acceptable. If the belt has chunks missing from the ribs, it should be replaced.



    A141644E02

  1. Check by hand that the belt fits properly in the ribbed grooves and has not slipped out of the grooves on the bottom of the crank pulley.



2. INSPECT V-RIBBED BELT TENSIONER ASSEMBLY

  1. Check that nothing gets caught in the tensioner by turning it clockwise and counterclockwise.
    If a malfunction exists, replace the tensioner.



3. INSPECT VALVE LASH ADJUSTER NOISE

  1. Rev up the engine several times. Check that the engine does not emit unusual noises.
    If unusual noises occur, warm up the engine and idle it for over 30 minutes. Then perform the inspection above again.
    If any defects or problems are found during the inspection above, perform a lash adjuster inspection (see page Нажмите здесь).



4. INSPECT IGNITION TIMING

  1. Warm up and stop the engine.

    УКАЗАНИЕ:
    A warmed up engine should have an engine coolant temperature of over 80°C (176°F) and an engine oil temperature of 60°C (140°F), and the engine rpm should be stabilized.

  1. When using the intelligent tester:

    1. Connect the intelligent tester to the DLC3.

    2. Start the engine and idle it.

    3. Push the intelligent tester main switch ON.

    4. Enter the following items: Powertrain / Engine and ECT / Data List / Primary / IGN Advance /

      Standard ignition timing:
      8 to 18° BTDC @ idle

      УКАЗАНИЕ:
      Refer to the intelligent tester operator's manual for further details.



  1. When not using the intelligent tester:

    1. Remove the V-bank cover.

    2. Remove the 5 clips and air cleaner inlet cover.

    3. Remove the 4 clips and engine room side cover LH.

    4. Remove the 2 bolts and No. 1 air cleaner inlet.

    5. Disconnect the air cleaner cap. (for Bank 1)

    6. Remove the 2 nuts and air cleaner case. (for Bank 1)



      7. A149052

    7. Connect the tester probe of a timing light to the wire of the ignition connector for No. 1 cylinder.

      ПРИМЕЧАНИЕ:
      Use a timing light that detects primary signals.



      8. H100769E05

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

      Специальный инструмент (SST):
      09843-18040  

      ПРИМЕЧАНИЕ:
      1. Confirm the terminal numbers before connecting them. Connecting the wrong terminals can damage the engine.
      2. When checking the ignition timing, the transmission should be in neutral.



      9. A149053

    9. Using a timing light, check the ignition timing.

      Standard ignition timing:
      8 to 12° BTDC @ idle

    10. Remove SST from the DLC3.

    11. Check the ignition timing.

      Standard ignition timing:
      8 to 18° BTDC @ idle

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

    13. Disconnect the timing light from the engine.

    14. Install the air cleaner case (for Bank 1) with the 2 nuts.

    15. Connect the air cleaner cap. (for Bank 1)

    16. Install the No. 1 air cleaner inlet with the 2 bolts.

    17. Install the engine room side cover LH with the 4 clips.

    18. Install the air cleaner inlet cover with the 5 clips.

    19. Install the V-bank cover.



5. INSPECT ENGINE IDLE SPEED

  1. Warm up and stop the engine.

    УКАЗАНИЕ:
    A warmed up engine should have an engine coolant temperature of over 80°C (176°F) and an engine oil temperature of 60°C (140°F), and the engine rpm should be stabilized.

  1. When using the intelligent tester:

    1. Connect the intelligent tester to the DLC3.

      ПРИМЕЧАНИЕ:
      Switch off all accessories and the A/C before connecting the intelligent tester.

    2. Race the engine speed at 2,500 rpm for approximately 90 seconds.

    3. Push the intelligent tester main switch ON.

    4. Enter the following items: Powertrain / Engine and ECT / Data List / Primary / Engine Speed /

      Standard idle speed:
      700 to 800 rpm

      ПРИМЕЧАНИЕ:
      When checking the idle speed, the transmission should be in neutral.

      УКАЗАНИЕ:
      Refer to the intelligent tester operator's manual for further details.

      If the idle speed is not as specified, check the air intake system.

    5. Disconnect the intelligent tester from the DLC3.



  1. When not using the intelligent tester:



      H100769E32

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

      Специальный инструмент (SST):
      09843-18040  

      ПРИМЕЧАНИЕ:
      Confirm the terminal numbers before connecting them. Connecting the wrong terminals can damage the engine.

    2. Race the engine speed at 2,500 rpm for approximately 90 seconds.

    3. Check the idle speed.

      Idle speed (Transmission neutral position):
      700 to 800 rpm

      If the speed is not as specified, check the air intake system.

    4. Disconnect the tachometer from the DLC3.



6. INSPECT COMPRESSION

  1. Warm up and stop the engine.

    УКАЗАНИЕ:
    A warmed up engine should have an engine coolant temperature of over 80°C (176°F) and an engine oil temperature of 60°C (140°F), and the engine rpm should be stabilized.

  1. Remove the V-bank cover.

  1. Remove the 5 clips and air cleaner inlet cover.

  1. Remove the 8 clips and 2 engine room side covers.

  1. Remove the 2 bolts and No. 1 air cleaner inlet.

  1. Remove the 4 nuts and 2 air cleaner assemblies.

  1. Disconnect the cable from the negative battery terminal (see page Нажмите здесь).

  1. Remove the battery and tray.



    C148789E03

  1. Remove the 3 bolts and skid control ECU.

  1. Remove the bolt, 2 nuts and skid control ECU bracket.



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  1. Disconnect the 8 ignition coil connectors.



    A149214E03

  1. Disconnect the 2 injector connectors as shown in the illustration.

  1. Remove the 8 bolts and 8 ignition coils.

  1. Remove the 8 spark plugs.



  1. Cylinder under the battery installation position:
    Inspect the compression pressure.



      A150056

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

    2. Install the battery and tray.

    3. Connect the cable to the negative battery terminal.

    4. Depress and hold the brake pedal, and turn the engine switch on (IG). Then check the compression pressure.

      УКАЗАНИЕ:
      Always use a fully charged battery to obtain engine speed of 200 rpm or more.

      ПРИМЕЧАНИЕ:
      The measurement must be done as quickly as possible.

      Standard compression pressure:
      1400 kPa (14.2 kgf/cm2, 203 psi) or more

      Minimum pressure:
      980 kPa (9.9 kgf/cm2, 142 psi)

    5. Turn the engine switch off.

    6. Disconnect the cable from the negative battery terminal (see page Нажмите здесь).

    7. Remove the battery and tray.

    8. Remove the compression gauge.



  1. Cylinder other than cylinder under the battery installation position:
    Inspect the compression pressure.



      A150056

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

    2. Install the battery and tray.

    3. Connect the cable to the negative battery terminal.

    4. Depress and hold the brake pedal, and turn the engine switch on (IG). Then check the compression pressure.

      УКАЗАНИЕ:
      Always use a fully charged battery to obtain engine speed of 200 rpm or more.

      ПРИМЕЧАНИЕ:
      The measurement must be done as quickly as possible.

      Standard compression pressure:
      1400 kPa (14.2 kgf/cm2, 203 psi) or more

      Minimum pressure:
      980 kPa (9.9 kgf/cm2, 142 psi)

    5. Remove the compression gauge.

    6. Perform the inspection above for each cylinder.

    7. Check the pressure difference between each compression pressure.

      Pressure difference:
      100 kPa (1.0 kgf/cm2, 14.5 psi) or less

    8. If the cylinder compression is low in one or more cylinders, pour a small amount of engine oil into the cylinder with low compression through its spark plug hole. Then inspect the cylinder compression pressure again.

      УКАЗАНИЕ:
      1. If adding oil helps boost the compression, it is likely that the piston rings and/or cylinder bore are worn or damaged.
      2. If pressure stays low, a valve may be stuck or seated improperly, or there may be leakage in the gasket.

    9. Disconnect the cable from the negative battery terminal (see page Нажмите здесь).

    10. Remove the battery and tray.

  1. Install the 8 spark plugs.

  1. Install the 8 ignition coils with the 8 bolts.



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  1. Disconnect the 8 ignition coil connectors.



    A149214E01

  1. Connect the 2 injector connectors as shown in the illustration.

  1. Install the skid control ECU bracket with the bolt and 2 nuts.

  1. Install the skid control ECU with the 3 bolts.

  1. Install the battery and tray.

  1. Connect the cable to the negative battery terminal.

  1. Install the 2 air cleaner assemblies with the 4 nuts.

  1. Install the No. 1 air cleaner inlet with the 2 bolts.

  1. Install the 2 engine room side covers with the 8 clips.

  1. Install the air cleaner inlet cover with the 5 clips.

  1. Install the V-bank cover.

  1. Perform initialization (see page Нажмите здесь).

    ПРИМЕЧАНИЕ:
    Certain systems need to be initialized after reconnecting the cable to the negative (-) battery terminal.

  1. Clear the DTCs (see page Нажмите здесь).



7. INSPECT CO/HC

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

  1. Start the engine.

  1. Keep the engine speed at 2,500 rpm for approximately 180 seconds.



    A149060

  1. Insert the CO / HC meter testing probe at least 40 cm (1.3 ft) into the tailpipe during idling.

  1. Immediately check CO / HC concentration at idle and 2,500 rpm.

    УКАЗАНИЕ:
    1. When performing the 2 mode (2,500 rpm and idle) test, follow the measurement order prescribed by the applicable local regulations.
    2. If the CO / HC concentration does not comply with regulations, troubleshoot in the order given below.


    1. Check the A/F sensor and heated oxygen sensor operation.

    2. See the table below for possible causes, then inspect and correct the applicable causes if necessary.

      CO
      		HC
      		Symptom
      		Causes
      Normal
      		High
      		Rough idle
      1. 1. Faulty ignitions
        1. Incorrect timing
        2. Plugs are contaminated, shorted, or gaps are defective.
      2. 2. Leaky intake and exhaust valves
      3. 3. Leaky cylinder
      Low
      		High
      		Rough idle
      (Fluctuating HC reading)
      1. 1. Vacuum leaks
        1. PCV hose
        2. Intake manifold
        3. Throttle body
      2. 2. Lean mixture causing misfire
      High
      		High
      		Rough idle
      (Black smoke from exhaust)
      1. 1. Restricted air filter
      2. 2. Faulty SFI system
        1. Faulty pressure
        2. Defective ECT sensor
        3. Faulty ECM
        4. Faulty injector
        5. Faulty throttle position sensor
        6. Faulty MAF sensor