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


  1. CHECK SEATING OF EGR VALVE


    1. Check that the engine starts and idles.

    2. Stop the engine.

  2. CHECK EGR VALVE OPERATION


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the tester on.

    3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position.

    4. Check the Data List / Target EGR Position and Actual EGR valve pos.

      OK
      Control Range Condition Specified Condition
      Active Test performed (Set EGR position to 0% → 30% → 60% → 90% → 60% → 30% → 0%) Actual EGR valve opening percentage changes according to Active Test operation

      If the result is not as specified, refer to DTC P042E Click here.

  3. VISUALLY INSPECT HOSES, CONNECTIONS AND GASKETS


    1. Visually check that the hoses, connections and gaskets have no cracks, leaks or damage.

      Note


      • Detachment or other problems with the engine oil dipstick, filler cap, PCV hose or 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 malfunctions.

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

    2. A01DSG7

      Check if the differential pressure sensor hoses are connected incorrectly, disconnected, leaking, cracked or otherwise damaged.

  4. CHECK VACUUM PUMP ASSEMBLY

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    Text in Illustration
    *1 Vacuum Gauge
    *2 Plug

    1. Disconnect the vacuum hose from the vacuum pump.

    2. Connect the hose of a vacuum gauge to the pump.

    3. Insert a plug into the other hose of the gauge.

    4. Start the engine and warm it up for more than 2 minutes.

    5. With the engine idling, measure the negative pressure of the pump.

      Standard negative pressure
      Higher than 87 kPa (650 mmHg, 25.6 in.Hg)

    6. Remove the gauge from the pump.

    7. Connect the hose to the pump with the clip.

  5. DPF FORCIBLE REGENERATION PROCEDURE


    1. Disconnect the cable from the negative (-) battery terminal or remove the EFI fuse for 1 minute or more.

      Tech Tips


      • Disconnect the cable from the negative (-) battery terminal or remove the EFI fuse in order to initialize the value for the amount of particulate matter recorded by the ECM. If initialization is not performed, the Active Test cannot be performed.

      • If the MIL turns on, clear the DTCs using the intelligent tester before performing the initialization.

      • If the MIL is not illuminated, proceed to the next step, as initialization is not necessary.

    2. Connect the intelligent tester to the DLC3.

    3. Start the engine until the engine coolant temperature reaches 60°C (140°F) or higher.

    4. for Manual Transmission:

      Move the shift lever to N and set the parking brake.

    5. for Automatic Transmission:

      Move the shift lever to P and set the parking brake.

    6. Turn the tester on.

    7. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the DPF Rejuvenate (PM).

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      CAUTION:

      Before performing the Active Test, make sure that there are no combustible materials around the DPF and tailpipe.

      Note

      If the ambient temperature is 30°C (86°F) or higher, the DPF and surrounding area become very hot. Use a fan, etc. to cool the exhaust gas temperature sensors, air-fuel ratio sensor and surrounding areas.

      A01DP7IE01
      Text in Illustration
      *1 Air

      Tech Tips


      • The engine speed increases during the Active Test and the engine speed returns to idle when the Active Test is completed.

      • The time it takes to complete the Active Test varies depending on the PM volume stored. However, it usually takes approximately 15 minutes to complete the Active Test.

      • Do not cancel the Active Test unless absolutely necessary.

      • If the Active Test needs to be canceled, depress the accelerator pedal and race the engine to cancel the process. If the Active Test is canceled, it must be performed again.

      • If the differential pressure value increases too much during the Active Test, the fail-safe function activates and the Active Test is stopped.

      • Even if the Active Test is stopped before it finishes, "Compl(complete) for DPNR/DPF Status Reju(PM)" is displayed on the intelligent tester.

      • It may not be possible to perform the Active Test when the ambient temperature is extremely low or the elevation is extremely high. In this case, perform the Active Test indoors (with the tailpipe pointed towards the outside) or drive the vehicle at a speed of approximately 60 km/h (37 mph) or more for approximately 20 minutes to perform regeneration.

      • Depending on various conditions, the Active Test may not be completed within 15 minutes. If 20 minutes elapse, the system stops the Active Test and illuminates the MIL. If this happens, disconnect the cable from the negative (-) battery terminal or remove the EFI fuse for 1 minute or more so that the MIL turns off, and then perform the Active Test again