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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 431 (SYMPTOM TROUBLESHOOTING [ENGINE])ENGINE CONTROL SYSTEM OPERATION INSPECTIONDRIVE-BY-WIRE CONTROL SYSTEM INSPECTIONLOAD COMPENSATION INSPECTION
2008 Mazda 6 s Sport, 4D Hatchback, Standard

Load compensation inspection

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Load compensation inspection
WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
  1. Start the engine and run it at idle.
  2. Connect the WDS or equivalent to the DLC-2.
  3. Verify that P0506 or P0507 is not displayed.
    • If P0506 or P0507 are displayed, perform 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 

    LOAD CONDITION AND ENGINE SPEED (RPM) SPECIFICATION

    Load condition Engine speed (RPM)(1)
    MT AT
    No load 750-850 760-860
    E/L operating(2) 750-850 780-880
    A/C operating(3) Refrigerant pressure low(4) 760-860 780-880
    Refrigerant pressure high(5) 790-890 800-900
    A/C operating (refrigerant pressure low(4)) and E/L operating(2) 790-890 780-880
    (1) Neutral or P position
    (2) Headlight switch and rear window defroster switch is turned on. Blower motor is operating (fan switch 2nd or above).
    (3) A/C switch and fan switch are on.
    (4) Refrigerant pressure switch (medium pressure) is off.
    (5) Refrigerant pressure switch (medium pressure) is on.
RENDER: 1.0x

NO RELATED

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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.