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Home >> Mazda >> 2005 >> RX-8 Shinka, 1.3 N >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine] >> Engine Control System Operation Inspection >> Variable Dynamic Effect Intake-air (VDI) Operation Inspection

Variable Dynamic Effect Intake-air (VDI) Operation Inspection

  1. Connect the WDS or equivalent to the DLC-2.
  2. Access the RPM PID.
  3. Start the engine.
  4. Inspect the rod operation under the following condition:
    ROD OPERATION DESCRIPTION - VDI OPERATION INSPECTION

    Engine speed 7,250 RPM
    Below Above
    Shutter valve actuator  Not operate Operate
    • If the rod operation is not as specified, inspect as follows:
    1. Stop the engine.
    2. Connect the WDS or equivalent to the DLC-2.
    3. Verify that DTC P0076 or P0077 is not displayed.
      • If DTC P0076 or P0077 is shown, perform DTC inspection.

        (See DTC TABLE .)

    4. Inspect the VDI solenoid valve.

      (See VARIABLE DYNAMIC EFFECT INTAKE-AIR (VDI) SOLENOID VALVE INSPECTION .)

      • If the VDI solenoid valve is not normal, replace the VDI solenoid valve.
      • If the VDI solenoid valve is normal, inspect the following:
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