2004 Lexus ES 330FACTORY OEM SERVICE PROCEDURE

Section 148 (Engine Fuel System): Inspection

WARNING: This page is about a different car, the 2004 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FUEL INJECTOR ASSEMBLY 
    1. Inspect injector resistance
      1. Using an ohmmeter, measure the resistance between the terminals.

      Resistance: 13.4 to 14.2 Ω at 20°C (68°F) 

      If the resistance is not as specified, replace the injector.

    2. Inspect injector operation.
      CAUTION: This test involves high-pressure fuel and electricity. Take every precaution regarding safe handling of both the fuel and the electricity. Preform this test in a safe area, and avoid any sparks or flame. Do not smoke.
      1. Obtain new No. 1 fuel pipe (part No. 23801 -20171) and remove the fuel tube connector from the pipe.
        Fig 1: Identifying Fuel Tube Connector
        G03061976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Install the fuel tube connector to SST (hose), then connect the tube connector and the fuel pipe.

        SST 09268-41047 (95336-08070)

        Fig 2: Installing Fuel Tube Connector To SST (Hose)
        G03061977Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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.