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Home >> Mazda >> 2014 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine Control System] >> Engine Control System Operation Inspection >> Variable Tumble Control Operation Inspection
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Variable Tumble Control Operation Inspection

  1. Connect the M-MDS to the DLC-2.
  2. Access the ECT PID.
  3. Verify that the ECT PID is below 60°C {140°F}. 
  4. Start the engine.
  5. Inspect rod operation under the following conditions:
    ROD OPERATION

    Accelerator pedal position  Release Depress
    Shutter valve actuator  Operate Not operate
    • If the rod operation is not specified, inspect as follows:
    1. Verify that DTC No. P2004, P2006, P2009 or P2010 is not displayed.
    2. Inspect the variable tumble solenoid valve. (See VARIABLE TUMBLE SOLENOID VALVE INSPECTION ).