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HOMESERVICE MANUALSHONDA2003CIVIC HX, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 16 (PGM-FI SYSTEM (HATCHBACK))INJECTOR REPLACEMENT
2003 Honda Civic HX, Standard

Injector Replacement

2003 Honda Civic HX, StandardSECTION Injector Replacement
WARNING: This page is about a different variant/trim than selected.
  1. Relieve fuel pressure (see FUEL PRESSURE RELIEVING ).
  2. Disconnect the connectors from the injectors (A), disconnect the ground cable (B), and remove the bracket (C).
    Fig 1: Removing The Fuel Rail And Injectors As An Assembly
    G01399466Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Disconnect the quick-connect fittings (D).
  4. Remove the fuel rail mounting nuts (E) from the fuel rail (F) then remove the fuel rail and injectors as an assembly.
  5. Remove the injector clip (G) from the injector.
  6. Remove the injector from the fuel rail.
  7. Coat the new O-rings (A) with clean engine oil, and insert the injectors (B) into the fuel rail (C).
    Fig 2: Inserting The Injectors Into The Fuel Rail
    G01399467Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Install the injector clip (D).
  9. Coat the injector O-rings (E) with clean engine oil.
  10. Install the injectors into the fuel rail, then install the fuel rail into the intake manifold (G).
  11. Install the fuel rail mounting nuts, ground cable, and bracket.
  12. Connect the connectors to the injectors.
  13. Connect the quick-connect fittings.
  14. Turn the ignition switch ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel pressure in the fuel line rises. Repeat this two or three times, then check for fuel leakage.
RENDER: 1.0x

NO RELATED

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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.