2012 Honda Insight BaseFACTORY OEM SERVICE PROCEDURE

Injector Replacement

  1. Relieve the fuel pressure (see FUEL PRESSURE RELIEVING ).
  2. Remove the intake manifold (see INTAKE MANIFOLD REMOVAL AND INSTALLATION ).
  3. Remove the nut (A).
    Fig 1: View Of Fuel Infector Assembly
    G08092376Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Disconnect the injector connectors (B), the intake side ignition coil connectors (C), and the EGR valve connector (D).
  5. Remove the fuel rail mounting nuts (E) and the bolt (F) from the fuel rail (G), then remove the injectors and the fuel rail together.
  6. Remove the injector clips (H) from the injectors (I).
  7. Remove the injectors from the fuel rail.
  8. Coat the new O-rings (black) (A) with clean engine oil, and insert the injectors (B) into the fuel rail (C).
    Fig 2: View Of Fuel Infector Assembly
    G08092377Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Install the injector clips (D).
  10. Coat the injector O-rings (E) with clean engine oil.
  11. Install the fuel rail and the injectors in the cylinder head (F).
  12. Install the fuel rail mounting nuts (G) and the bolt (H).
  13. Install the nut (I) with a new O-ring (J).
  14. Connect the injector connectors (K), the intake side ignition coil connectors (L), and the EGR valve connector (M).
  15. Install the intake manifold (see INSTALLATION ).
  16. Turn the ignition switch to ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel rail is pressurized. Repeat this two or three times, then check for fuel leaks.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.