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Home >> Isuzu >> 2004 >> Axiom Base, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Introduction >> On-Board Diagnostic (OBD-II) >> On-Board Diagnostic (OBD-II) Information >> Fuel System Test

Fuel System Test

This Test is conducted check Fuel Level Gauge for proper operation.

Tech 2 must be used for this test.

Test Procedure: 

  1. Connect Tech 2 to the vehicle DLC.
  2. Ignition SW is "On".
  3. Select F3: Miscellaneous Test in the Application Menu.
    Fig 1: Selecting F3: Miscellaneous Test In Application Menu
    G02788742Courtesy of ISUZU MOTOR CO.
  4. Select F4: Fuel System Test in the Miscellaneous Test.
    Fig 2: Selecting F4: Fuel System Test In Miscellaneous Test
    G02788743Courtesy of ISUZU MOTOR CO.
  5. Select F1: Injector Balance Test.
    Fig 3: Selecting F1: Injector Balance Test
    G02788744Courtesy of ISUZU MOTOR CO.
  6. Push "Decrease" or "Increase" soft key.
  7. Control Fuel Level and check data list.
  8. If data list changes, the Fuel Gauge Level is normal.
  9. Select F0: High Pressure Regulator Valve.
    Fig 4: Selecting F0: High Pressure Regulator Valve
    G02788745Courtesy of ISUZU MOTOR CO.
  10. Push "Reset" soft key.