2007 Mazda 6 MazdaspeedFACTORY OEM SERVICE PROCEDURE

Load compensation inspection

  1. Start the engine and run it is idling.
  2. Connect the M-MDS to the DLC-2.
  3. Verify that DTC P0506 or P0507 is not displayed.
    • If DTC P0506, or P0507 is displayed, perform the DTC inspection.

      (See DTC TABLE ).

  4. Select the RPM PID.
    NOTE:
    • Excludes temporary idle speed drop just after the loads are turned on.
  5. Verify that the engine speed is within the specification under each load condition.

    Engine speed 

    ENGINE SPEED REFERENCE CHART

    Load condition Engine speed (RPM)(1)
    No load 650-750
    E/L operating 650-750
    P/S operating 650-750
    A/C operating(2) Refrigerant pressure low(3) 700-800
    Refrigerant pressure high(4) 725-825
    (1) Neutral
    (2) A/C switch and fan switch are on.
    (3) Refrigerant pressure switch (middle pressure) is off.
    (4) Refrigerant pressure switch (middle pressure) is on.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.