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ENGINE ON-VEHICLE INSPECTION

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  1. Click here

    INSPECT COOLANT (for Engine)

    (Click here)

  2. Click here

    INSPECT ENGINE OIL

    (Click here)

  3. Click here

    INSPECT AUXILIARY BATTERY

    (Click here)

  4. Click here

    INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY


    1. Remove the air cleaner cap.

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

    3. Visually check that the air cleaner filter element sub-assembly is not excessively damaged or oily.

      If necessary, replace the air cleaner filter element sub-assembly.

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

    5. Install the air cleaner cap.

  5. Click here

    INSPECT VALVE AND ADJUSTER NOISE


    1. Put the engine in inspection mode (Click here).

    2. 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 (Click here).

  6. Click here

    INSPECT IGNITION TIMING


    1. Put the engine in inspection mode (Click here).

    2. Warm up and stop the engine.

    3. When using the intelligent tester:

      Check the ignition timing.


      1. Connect the intelligent tester to the DLC3.

      2. Put the engine in inspection mode (Click here).

      3. Turn the intelligent tester on.

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

        Standard ignition timing
        0 to 16 degrees BTDC
        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 shift position neutral (N) or park (P) should be selected.

        Tip:

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

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

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

      7. Monitor IGN Advance of the Data List.

        Standard ignition timing
        8 to 12 degrees BTDC
        Note:

        When checking the ignition timing, the shift position neutral (N) or park (P) should be selected.

        Tip:

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

      8. Enter the following menus: Connect the TC and TE1 / OFF.

      9. Turn the power switch off.

      10. Turn the intelligent tester off.

      11. Disconnect the intelligent tester from the DLC3.

    4. When not using the intelligent tester:


      1. A003VHWE35

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

        Table 1. Text in Illustration
        *1 DLC3
        09843-18040
        Note:

        • Be sure to connect the terminals correctly. Failure to do this can damage the engine.

        • Check the ignition timing with the cooling fans off.

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

        • When checking the ignition timing, the shift position neutral (N) or park (P) should be selected.

      2. Remove the No. 2 cylinder head cover (Click here).

      3. A003VKV

        Pull out the wire harness shown in the illustration.

        Note:

        After checking, wrap the wire harness with tape.

      4. Connect the clip of the timing light to the wire harness.

        Note:

        Use a timing light that detects the primary signal.

      5. Inspect the ignition timing at idle.

        Standard ignition timing
        8 to 12 degrees BTDC
        Note:

        When checking the ignition timing, the shift position neutral (N) or park (P) should be selected.

        Tip:

        After running the engine at 1000 to 1300 rpm for 5 seconds, check that it returns to idle speed.

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

      7. Inspect the ignition timing at idle.

        Standard ignition timing
        0 to 16 degrees BTDC

      8. Confirm that the ignition timing advances when the engine rpm is increased.

      9. Remove the timing light.

      10. Install the No. 2 cylinder head cover (Click here).

  7. Click here

    INSPECT ENGINE IDLE SPEED


    1. Put the engine in inspection mode (Click here).

    2. Warm up and stop the engine.

    3. When using the intelligent tester:


      1. Connect the intelligent tester to the DLC3.

      2. Put the engine in inspection mode (Click here).

      3. Turn the intelligent tester on.

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

        Tip:

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

      5. Inspect the engine idle speed.

        Standard idle speed
        950 to 1050 rpm
        Note:

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

        • Inspect the idle speed with the cooling fans off.

        • When checking the idle speed, the shift position neutral (N) or park (P) should be selected.

      6. Turn the power switch off.

      7. Turn the intelligent tester off.

      8. Disconnect the intelligent tester from the DLC3.

    4. When not using the intelligent tester:


      1. A003Y8SE04

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

        Table 2. Text in Illustration
        *1 DLC3
        09843-18030

      2. Put the engine in inspection mode (Click here).

      3. Inspect the engine idle speed.

        Standard idle speed
        950 to 1050 rpm
        Note:

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

        • Inspect the idle speed with the cooling fans off.

        • When checking the idle speed, the shift position neutral (N) or park (P) should be selected.

      4. Disconnect terminal 9 (TAC) of the DLC3.

  8. Click here

    INSPECT COMPRESSION


    1. Put the engine in inspection mode (Click here).

    2. Warm up and stop the engine.

    3. Remove the 4 spark plugs (Click here).

    4. A003WS9

      Inspect the cylinder compression pressure.


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

      2. Connect the intelligent tester to the DLC3.

      3. Turn the power switch on (IG).

      4. Turn the intelligent tester on.

      5. Enter the following menus: Powertrain / Hybrid Control / Active Test / Compression Test / ON.

      6. Depress and hold the brake pedal, and turn the power switch on (READY).

        Note:

        The measurement must be done as quickly as possible.

        Tip:

        • Noise may be emitted from the transmission. However, this is not a malfunction.

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

        Standard compression pressure
        813 kPa (8.3 kgf/cm2, 118 psi) or more
        Minimum pressure
        617 kPa (6.3 kgf/cm2, 89.5 psi)
        Pressure difference between each cylinder
        100 kPa (1.0 kgf/cm2, 14.5 psi) or less
        Note:

        • Inspect the other cylinders in the same way.

        • Measure the compression as quickly as possible.

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

        Tip:

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

        • If the pressure stays low, a valve may be stuck or seated improperly, or there may be leaks from the gasket.

    5. Install the 4 spark plugs (Click here).

      Note:

      After performing all the procedures, be sure to clear any DTCs stored in memory.

  9. Click here

    INSPECT CO/HC

    Tip:

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


    1. Put the engine in inspection mode (Click here).

    2. Warm up the engine.

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

    4. Insert a CO/HC meter testing probe at least 40 cm (1.31 ft.) into the tailpipe while idling.

    5. Check the CO/HC concentration while idling and when the engine is running at 2500 rpm.

      Tip:

      When doing 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, troubleshoot in the order given below.


      1. Check the DTCs (Click here).

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

        CO HC Problem Possible Cause
        Normal High Rough idle

        1. Faulty ignition:


          • Incorrect timing

          • Fouled, shorted or improperly gapped plugs

        3. Incorrect valve clearance

        4. Leaks from intake and exhaust valves

        5. Leaks from cylinders

        6. Faulty EGR

        Low High Rough idle (Fluctuating HC reading)

        1. Vacuum leaks:


          • PCV hoses

          • Intake manifold

          • Throttle body

          • Brake booster line

        3. Lean mixture causing misfire

        4. Faulty EGR

        High High Rough idle (Black smoke from exhaust)

        1. Restricted air cleaner filter element sub-assembly

        2. Plugged PCV valve

        3. Faulty EFI systems:


          • Faulty pressure regulator

          • Faulty engine coolant temperature sensor

          • Faulty mass air flow meter

          • Faulty ECM

          • Faulty injectors

          • Throttle body

        5. Faulty EGR