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Home >> Acura >> 2003 >> MDX Base >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Supply System >> Fuel Pressure Relieving >> With the HDS
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With the HDS

  1. Make sure you have the anti-theft code for the radio and navigation system, then write down the frequencies for the radio's station presets.
  2. Remove the fuel filler cap.
  3. Start the engine and let it idle.
  4. From the INSPECTION MENU of the HDS, select FUEL PUMP OFF, then start the engine and let it idle until it stalls.
  5. Turn the ignition switch OFF.
    NOTE:
    • Do not allow the engine to idle above 1,000 rpm or the PCM will continue to operate the fuel pump.
    • A DTC or a Temporary DTC may be set during this procedure. Check for DTCs, and clear them as necessary (see GENERAL TROUBLESHOOTING INFORMATION ).
  6. Turn the ignition switch OFF.
  7. Disconnect the negative cable from the battery.
  8. Remove the quick-connect fitting cover (A).
    Fig 1: Removing Quick-Connect Fitting Cover (2003-04 Models)
    G03639943Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 2: Removing Quick-Connect Fitting Cover (2005-06 Models)
    G03639944Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Place a rag or shop towel (B) over the quick-connect fitting (C).
  10. Disconnect the quick-connect fitting (see FUEL LINE/QUICK-CONNECT FITTING PRECAUTIONS  ).
  11. After relieving fuel pressure, install the quick-connect fitting (see FUEL LINE/QUICK-CONNECT FITTING INSTALLATION  ).
  12. Reconnect the negative cable to the battery, and do these items: