2007 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Fuel Injector: Installation

  1. INSTALL FUEL INJECTOR ASSEMBLY 
    1. Install a new O-ring, grommet and insulator to the injector.
      NOTE:
      • Check that there is no damage or foreign material in the groove of the injector when installing the injector's O-ring.
      • Apply gasoline to a new O-ring and install it to the injector.
        Fig 1: Installing New O-Ring, Grommet And Insulator To Injector
        G05289169Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Push and rotate the injector 45° clockwise and counterclockwise to install it to the delivery pipe.
    3. Check that the injector rotates smoothly.
      NOTE: When the injector does not rotate smoothly, the O-ring may be pinched. Remove the injector and install a new O-ring to the injector.
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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.

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