EMISSION CONTROL SYSTEM (w/o DPF) ON-VEHICLE INSPECTION

Note

Always stop the engine before installing or removing the vacuum gauges, or removing the vacuum hoses.

Tech Tips

Black or white smoke may emit from the exhaust pipe because of the malfunction when the EGR system is always on. If this occurs, inspect the EGR system.


  1. INSTALL VACUUM GAUGE

    A01BDK6

    1. Using a 3-way connector, connect a vacuum gauge to the hose between the EGR valve and E-VRV.

  2. CHECK SEATING OF EGR VALVE


    1. Start the engine. Check that the engine starts and then idles.

  3. CHECK OUTPUT VACUUM WITH VACUUM GAUGE


    1. Warm up the engine and check that the vacuum gauge reading is above 86.7 kPa (650 mmHg, 25.59 in.Hg).

      If the result is not as specified, replace the vacuum pump.

  4. CHECK HOT ENGINE CONDITION


    1. Visually check the vacuum hose between the vacuum pump and the EGR valve for leaks.

    2. Warm up the engine. The coolant temperature should be between 75°C (167°F) and 90°C (194°F).

    3. Check that the vacuum gauge reading is approximately 28.0 kPa (210 mmHg, 8.3 in.Hg) at idle.

    4. Check that the vacuum gauge reading increases to more than 28.0 kPa (210 mmHg, 8.3 in.Hg) at 1,500 rpm.

    5. When the accelerator pedal is fully depressed quickly, check that the vacuum gauge reading drops momentarily.

    6. Keep the engine speed at more than 4,000 rpm.

    7. Check that the vacuum gauge indicates below 3.6 kPa (28 mmHg, 1.1 in.Hg).

    8. When the accelerator pedal is released, check that the vacuum gauge reading drops momentarily while the engine speed decreases from more than 4,000 rpm to idle.

      If the result is not as specified, refer to the INSPECTION section Click here.

  5. REMOVE VACUUM GAUGE

  6. VISUALLY CHECK HOSES, CONNECTIONS AND GASKETS


    1. A01BD3M

      Check the appearance.


      1. Check if there are any cracks, damage, or leaks on the indicated portions of the engine assembly.

        Note


        • Detachment or other problems with the engine oil dipstick, filler cap, PCV hose and other components may cause the engine to run improperly.

        • Air suction caused by disconnections, looseness or cracks in the parts of the air induction system between the throttle body and cylinder head will cause engine failure or engine malfunction.

        If the result is not as specified, replace the parts as necessary.

  7. CHECK VACUUM PUMP ASSEMBLY

    Click here