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Home >> Mazda >> 2006 >> 6 s, 4D Wagon, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Fuel System (L3 With TC)) >> High Pressure Fuel Pump Inspection

High Pressure Fuel Pump Inspection

WARNING: This page is about a different variant/trim than selected.
NOTE:
  • Perform the following inspection only when directed.
  • The following vacuum values are indicated by relative pressure from the fuel pressure sensor.
  1. Verify that the fuel pressure sensor is normal. See FUEL PRESSURE SENSOR INSPECTION .
  2. Connect the WDS or equivalent to the DLC-2.
  3. Turn the ignition switch to the ON position (Engine off).
  4. Select the FUEL_PRES, and LOAD, RPM PIDs on the WDS or equivalent.
    CAUTION:
    • If the engine is run at a high speed, it could be damaged. When racing the engine, do not race it up to 6,700 RPM or more.
  5. After the LOAD PID is 60% or more  while the engine is raced with the accelerator pedal fully depressed, verify that the FUEL_PRES PID is approx. 11.5 Mpa  .
    • If not as verified, replace the high pressure fuel pump.
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